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(Click for frequent words.) 66 oxidiser 65 cryogenic propellants 64 cryogenic liquid 64 hypergolic 63 compressed hydrogen 63 supercold liquid oxygen 63 #bar [002] 62 nitrogen tetroxide 61 exothermic reaction 61 hydrogen 61 hypergolic propellants 61 oxidizer 60 monomethyl hydrazine 59 solid propellants 59 propellant tanks 59 metal hydride 59 parahydrogen 59 liquid propellants 59 harmless nitrogen 59 hypersonic speeds 59 hydraulic accumulator 59 propellant 58 liquid hydrogen 58 chemical hydride 58 chromatographic separations 58 liquid hydrogen LH2 58 reactants 58 charcoal canister 58 liquid propellant 58 liquid oxygen 58 propellent 57 liquid electrolyte 57 liquid oxygen LOX 57 exhaust gasses 57 Fregat upper stage 57 gaseous nitrogen 57 vaporisation 57 SCUD Single stage 57 xenon propellant 57 combustion chambers 57 Ionic liquids 57 oxygen propellants 57 sodium alanate 57 superheated steam 57 bi propellant 57 sulphate particles 57 potassium hydroxide 57 flammable solvents 56 breathing supersonic combustion 56 combustion gases 56 Liquid Oxygen 56 turbopumps 56 supersonic combustion 56 hydrazine propellant 56 Foam insulation 56 flammable hydrocarbons 56 lithium hydroxide 56 cyclohexane 56 liquefied gases 56 ammonia borane 56 chemical reactants 56 spontaneously ignites 56 sodium coolant 56 scramjet engine 56 supercooled liquid 55 aqueous urea solution 55 flammable hydrogen 55 bipropellant 55 gaseous methane 55 drillship Discoverer Enterprise 55 HydroCell ™ 55 liquefied hydrogen 55 depressurizes 55 supercold liquid hydrogen 55 exothermic 55 BZh 55 scramjets 55 biogasoline 55 vapor 55 microgravity environment 55 combustor 55 hydrogen peroxide H#O# 55 unpressurized cargo 55 cryogenic cooling 55 rocket thrusters 55 inert nitrogen 55 magnetostrictive linear position 55 pentane 55 diverter valve 55 combustion chamber 55 Spacehab module 55 gaseous helium 55 shuttle aft compartment 55 boron trifluoride 54 heptane 54 maneuvering thrusters 54 dewars 54 breathing scramjet engine 54 ramjet 54 hydrazine fuel 54 gaseous oxygen 54 hydride 54 Liquid helium 54 fueled microturbine 54 viscous fluid 54 #LL [001] 54 ceria 54 turbo compressor 54 electric ion propulsion 54 argon gas 54 ammonia 54 SSMEs 54 cryostat 54 compressed nitrogen 54 supercritical fluids 54 evaporative emissions 54 cryogenically cooled 54 repressurization 54 ion thrusters 54 colorless flammable liquid 54 isobutane 54 cryogenic propellant 54 liquid helium 54 Q# vessel 54 solvent evaporation 53 coolant hoses 53 GSLV Mk III 53 inlet valve 53 hydrogen H2 53 nitrogen argon 53 Leonardo Multi Purpose 53 hydrocarbon vapor 53 isobutylene 53 Foton spacecraft 53 nitriding 53 supercold 53 interstage 53 dehydrogenation 53 vacuum distillation 53 inerting 53 #MPa 53 compressed gaseous hydrogen 53 liquid xenon 53 combustors 53 removes impurities 53 drogue parachute 53 chemically reactive 53 electrolyze 53 Sodium cyanide 53 liquid ammonia 53 amine scrubbing 53 iso octane 53 bacterial fermentation 53 nontoxic antifreeze 53 propellant loading 53 crankcase ventilation 53 pressurized module 53 cryogenic liquids 53 cooling coils 53 exhaust gases 53 liquid argon 53 Solid Rocket Boosters 53 liquefied chlorine 53 outgas 53 deionized 53 Hydrogen sulphide 53 pneumatic cylinder 53 magnetic bearings 53 Elemental mercury 52 ammonia coolant tank 52 porous membranes 52 liquid coolant 52 Jules Verne ATV 52 Pressurized 52 scfm 52 inlet manifold 52 piston pumps 52 uranium UF6 52 P#/P# truss 52 de ionized 52 Sulfuric acid 52 pneumatic actuators 52 Compressed hydrogen 52 supersonic combustion ramjet 52 Pressurization 52 offgas 52 sparging 52 supercold propellants 52 supercold fuel 52 Sulfur compounds 52 deorbit 52 atmospheric reentry 52 lb hr 52 blowdown drum 52 formamide 52 turbopump 52 flowable 52 external stowage 52 reactant 52 Pegasus XL 52 pipette tip 52 helium 52 supercritical fluid 52 Elektron oxygen generation 52 yellowish liquid 52 sodium borohydride 52 hydrides 52 evaporative emission 52 CNG Compressed Natural Gas 52 rotary vane 52 depressurised 52 sulfuric acids 52 hydrazine toxic 52 hydroxide ions 52 degassed 52 vapor mist 52 cryogenic temperatures 52 Daniel Tani hooked 52 Progress #P 52 MixAlco 52 venturi 52 urea injection 52 CBEH bio diesel 52 Nitric acid 52 Adblue 52 #psi [003] 52 epoxides 52 J 2X engine 52 toxic hydrazine 52 Hydrazine 52 ethanol butanol 52 combustible gases 52 scramjet engines 52 Diesel Exhaust Fluid DEF 52 electrolyzer 52 fractional distillation 52 melt viscosity 52 sodium acetate 52 autosampler 52 stoichiometric 52 heavier payloads 52 centrifugal blower 52 hydrostatically 52 radiator coolant 52 inerting systems 52 injector nozzles 52 UF4 51 oxidizers 51 VASIMR 51 electrospray 51 molten salts 51 Liquid Nitrogen 51 superfluid helium 51 Curiosity rover 51 nitrogen N2 51 ultracold temperatures 51 RSRMs 51 kilowatt microturbine 51 ferric oxide 51 Liquid nitrogen 51 SF6 51 reformate 51 thruster 51 injector nozzle 51 oxyhydrogen 51 demineralised water 51 flapper valve 51 cryogenic engine 51 degas 51 isobutene 51 Heat exchangers 51 asphaltenes 51 oxidation catalyst 51 kg payload 51 ionised 51 molten sulfur 51 sulfur trioxide 51 coolant 51 Parajet Skycar 51 oxidises 51 Sun synchronous orbit 51 nickel hydroxide 51 hydrofluoric acids 51 zirconium cladding 51 demineralized water 51 bulk solids 51 Jules Verne Automated Transfer 51 rotary piston 51 CO ₂ 51 scramjet 51 diatomic 51 Hydraulic fluid 51 monopropellant 51 desorption 51 Shuttle Atlantis docks 51 liquid oxygen feedline 51 silica nanoparticles 51 blowdown stack 51 viscosity liquids 51 Oxidizer 51 cuvette 51 chemisorption 51 BorgWarner CTA 51 Permanent Multipurpose Module PMM 51 water vapor 51 viscous fluids 51 absorption chiller 51 Formic acid 51 Scramjet 51 degasser 51 superhot gases 51 viscous liquid 51 Elektron oxygen generator 51 feedwater 51 nano titanate 51 SSPTS 51 ammonia NH3 51 capillary tube 51 ultrasonic humidifiers 51 rotary kiln 51 methyl ethyl 51 gaseous hydrogen leak 51 oxygen ions 51 photochemical reactions 51 pressurized oxygen 51 swing adsorption PSA 51 lubricating oils 51 nitrogen 51 molecular sieve 51 AdBlue injection 51 gaseous hydrogen venting 51 defueling 51 nanoliter 51 Shuttle Discovery docks 51 thin stillage 51 cadmium chloride 51 raffinate 51 UF6 gas 51 adsorbent 51 octane booster 51 valve malfunctioned 50 fuel injector 50 orbital maneuvering 50 neutralizes acid 50 hydrazine 50 deflagration 50 methanol 50 hydrogen chloride 50 l h 50 bulk vitrification 50 hydrofluorocarbons HFCs perfluorocarbons PFCs 50 Hydrochloric acid 50 oxidizing agent 50 flue gases 50 methane CH4 50 Biobutanol 50 hydrous 50 O OREOS 50 liquid chromatography HPLC 50 hydrous ethanol 50 solvent toluene 50 bipod fitting 50 liquefied methane 50 geo synchronous 50 Scramjets 50 AJ# engine 50 hydroxyl radicals 50 residue treater 50 Potassium Hydroxide 50 nozzles 50 hydrazine hazardous 50 aft compartment 50 environmentally friendly refrigerants 50 Inconel 50 docking compartment 50 SpaceShip Two 50 IBEX spacecraft 50 particulate contamination 50 propellants 50 fluidics 50 microchannel 50 peristaltic pumps 50 Neste Oil Porvoo refinery 50 microscopic bubbles 50 sodium hydroxide lye 50 de ionised 50 deorbiting 50 nitro methane 50 electrochemical reaction 50 thermally stable 50 flammable corrosive 50 flammable vapor 50 eluent 50 Geosynchronous Transfer Orbit GTO 50 oxidisation 50 sealless 50 methyl chloride 50 deactivation switch 50 polymer electrolyte membrane 50 Ammonia borane 50 toxic hydrogen sulfide 50 Sulphuric acid 50 Tranquility node 50 sulfate aerosols 50 Nitrogen N2 50 H#SO# 50 MPLM 50 particle separator 50 microgravity experiments 50 corrosive fluids 50 Bose Einstein Condensate 50 RASIRC Steamer 50 #/#-ton truss 50 electrically driven 50 soot particulates 50 solenoid valve 50 ionizes 50 wetted parts 50 polymerizes 50 high purity UHP 50 chromatograph 50 Compressed air 50 C#H# 50 helium cooled 50 Analyzer TEGA 50 compressed air 50 S6 truss 50 GE CF6 engines 50 ionise 50 polymerised 50 RO membrane 50 Picric acid 50 fluidized 50 vernier engines 50 thermal oxidation 50 liquid electrolytes 50 fuelings 50 flocculant 50 Hydrogen chloride 50 silane gas 50 hydraulic pump 50 silicon tetrafluoride 50 Leak Detector 50 Ketones 50 m3 h 49 B# biodiesel [001] 49 Acetylene 49 vapor compression 49 electrochemical sensor 49 manifold assemblies 49 Low sulfur diesel 49 ceramic membranes 49 Alstom chilled 49 gamma rays emitted 49 inert gases 49 Centaur upper 49 dinitrogen 49 overpressure 49 unburnt fuel 49 solid propellant 49 WaterCycle 49 Coriolis meters 49 water vapor condenses 49 Orbital Maneuvering System 49 Elektron O2 generator 49 Mercaptan 49 electrolyser 49 Air Missile AMRAAM 49 clathrates 49 carbonic acid 49 storable propellants 49 unenriched uranium 49 electrochemical reactions 49 chlorine bromine 49 rotary actuator 49 German dirigible Hindenburg 49 oppositely directed 49 vaporises 49 refluxing 49 Lithium ions 49 supercooled 49 exhaust camshafts 49 carpet extractor 49 Thrusters 49 molten alloy 49 NT Plasmatron 49 subsurface ocean 49 synthetic liquid hydrocarbons 49 hydroxyl ions 49 laminar flow 49 mesoporous 49 ionized gas 49 desulfurization unit 49 rotary valves 49 glass frit 49 B# biodiesel [002] 49 Hydrochloric 49 ramjet engine 49 #degC [002] 49 Shuttle docks 49 concentrated brine 49 magnetic stirrer 49 ECO sensors 49 flammable gases 49 de asphalting 49 Saturn moons Enceladus 49 #L/min 49 hydrochloric 49 pneumatic valves 49 Hydride 49 tritium radioactive 49 degassing 49 geosynchronous transfer 49 particulate matter emitted 49 undocks 49 SpaceLoft XL 49 busted blowout preventer 49 NanoLub 49 colorless liquid 49 inject methanol 49 desulfurizer 49 Manned Maneuvering Unit 49 carcinogenic polycyclic aromatic hydrocarbons 49 lbf thrust 49 preheats 49 Dynario 49 fluidised bed 49 adsorber 49 reductant 49 Propulsion System 49 Hydrogen H2 49 oxidising 49 CNG cylinder 49 superheat 49 reactor coolant pump 49 gases 49 carbon nanofibres 49 neutral mass spectrometer 49 HVOF 49 Taurus XL 49 Hydratus 49 psia 49 piezoelectric injectors 49 vapor hydrocarbons 49 lithium polymer batteries 49 piezoelectric ceramic 49 aeration basin 49 nozzle 49 intake valve 49 polarized electrons 49 m3/hr 49 lime slurry 49 particle acceleration 49 landing superheated gases 49 AdBlue urea 49 metal hydrides 49 denatured ethanol 49 hydrocarbon molecules 49 PSLV C# 49 dichloroethene 49 highly toxic heptyl 49 pyrolytic 49 regassified 49 sequestered CO2 49 Hydrates 49 deplete ozone 49 xenon 49 CarboGran 49 aft skirt 49 Silica gel 49 finely dispersed 49 irritant potassium hydroxide 49 reflow oven 49 variable valve actuation 49 electrically actuated 49 pad #A 49 aeration basins 49 gaseous hydrocarbons 49 fatty acid esters 49 nitrogen oxide NOx emissions 49 aromatic hydrocarbon 49 peracetic acid 49 Merlin 1C 49 isobutanol 49 outgassing 49 deuterium tritium 49 overpressurized 49 aqueous solution 49 R#a 49 superheated gases surrounding 49 intake plenum 49 N Stor 49 hypersonic jet 49 powerpack 49 Ultra Low Sulfur Diesel 49 Pirs docking compartment 49 radial piston 49 autoclavable 49 ionize 49 thrust vector 49 vaporized hydrogen peroxide 49 cyanogen 49 viscosity fluids 49 #m# h 49 hydrogen sulphide H2S 49 ionized particles 49 semi permeable 49 helium atom 49 Propellant 49 RPCM 49 ethane propane 49 Hydrogen Production 49 regeneratively cooled 49 DMSP F# 48 HP ElectroInk 48 ionized molecules 48 spacecraft checkout encapsulation 48 vapor condenses 48 Activated carbon 48 particle physics detector 48 nanocatalysts 48 Hydrogen Sulfide H2S 48 cryogen 48 Hydrogen Sulphide 48 benzenes 48 electrolyzing 48 ion thruster 48 exhaust silencer 48 tholins 48 Calcium carbide 48 weak carbonic acid 48 naphtha hydrotreater 48 pressurization 48 vacuum suction 48 Atlas 2AS 48 payload fairing 48 liquid vegetable oils 48 Coolant 48 hazardous vapors 48 SBSS satellite 48 pusher propeller 48 electron accelerators 48 Ultra Low Emissions 48 UF6 uranium hexafluoride 48 osmotic pressure 48 Carbon Dioxide CO2 48 borohydride 48 Nm3 h 48 -# degrees centigrade [001] 48 hydrogen purification 48 picoliter 48 carbonate minerals 48 harmful gasses 48 LH2 48 Sodium hydroxide 48 GAG machine 48 butane propane 48 variable camshaft timing 48 ultrahigh purity 48 filter feeders sucking 48 low viscosity fluids 48 Coriolis mass 48 hydrochloric acid HCl 48 cetane rating 48 Discovery undocking 48 Haber Bosch process 48 nanotube membranes 48 Plate GUCP 48 Shuttle Endeavour docks 48 oxygen 48 solvent vapors 48 syngas 48 oxidized mercury 48 boiler flue 48 Atlantis undocks 48 ammonium perchlorate 48 combustion 48 hydrogen ions 48 ignited vapors 48 JP8 48 combustion byproducts 48 Fregat 48 calcium sulphate 48 Orbiter Processing Facility OPF 48 pumpable 48 gasses 48 mercaptans 48 compressed gases 48 Hydrogen Sulfide 48 Sodium hypochlorite 48 ethane propane butane 48 vortex generators 48 fluxing 48 starboard truss 48 Mars Pathfinder lander 48 poisonous chlorine 48 #psi [001] 48 superconducting magnet 48 silicon monoxide 48 airglow 48 Minotaur IV 48 aromatic hydrocarbons 48 thermo chemical 48 carbonization 48 Dispersant 48 foam insulations 48 Reverse osmosis 48 Multi Purpose Logistics Module 48 supercritical CO2 48 ethyl acrylate 48 flammable hydrazine 48 molten salt 48 enriched uranium HEU 48 twin turbocharger 48 airship exploded 48 balancer shaft 48 magnetic spectrometer 48 MSL rover 48 electromagnetic coils 48 sodium atoms 48 GLAST spacecraft 48 ARCTUS 48 HCNG 48 ultrasonic waves 48 reboost 48 washwater 48 Tranquility Node 48 planetary Transits 48 diamondoids 48 halon gas 48 ultra capacitors 48 thermal oxidizers 48 Foton M2 48 microemulsion 48 ECO sensor 48 coolant temp 48 cocaine Valencia Arbalaez 48 Potassium hydroxide 48 pulsed plasma 48 centrifuging 48 Knelson concentrator 48 Launch Abort System 48 super capacitor 48 piston metering 48 psig 48 hydrofluorocarbon HFC 48 calcium oxide 48 micromachine 48 hp V6 engine 48 metered dose 48 LG SteamWasher 48 m³ h 48 dimethyl sulphide 48 ionisation 48 Enraf 48 benzene vapors 48 DC1 Docking Compartment 48 moisture condenses 48 toxic hydrazine fuel 48 Fischer Tropsch process 48 condenser tubes 48 pump impeller 48 Space shuttle undocks 48 magnesium hydroxide 48 thermal decomposition 48 spewed scalding 48 Freon coolant 48 thermometers barometers dental amalgams 48 acid hydrolysis 48 electrically insulating 48 robotic submersibles 48 Fischer Tropsch FT 48 Honda i VTEC 48 carbon dioxide 48 silicate rocks 48 Lockheed Martin Waterton Canyon 48 microreactors 48 thermowells 48 deionised water 48 Permanent Multipurpose Module 48 drogue 48 absorption chillers 48 ASTRA 1L 48 sterile saline 48 gel electrolyte 48 QuestAir H 48 linac 48 lithium titanate batteries 48 viscous liquids 48 Granulation 48 superheated gases 48 graphite oxide 48 matter antimatter annihilation 48 System ARBS 48 polyethylene piping 48 emulsifies 48 respired 48 Ionic Compressor 48 Variable valve 48 hydrotreating units 48 helium atoms 48 GOCE satellite 48 titrations 48 scramjet propulsion 48 nanomotors 48 carbon anodes 48 Solid Rocket Booster 48 polymer beads 48 hydraulic actuators 48 MELFI 48 APTIV film 48 barium sulfate 48 convective heat 48 Sulphur dioxide 48 capillary arrays 48 hydrodynamic cavitation 48 magnesium sodium potassium 48 liquid aerosol 48 drives ammonia coolant 48 backflush 48 dewar 48 -# ° C. [002] 48 bioactive molecules 48 Hydrogen fluoride 48 diverter valves 48 caustic wastewater 48 actuated valves 48 Dryer lint 48 nanobubbles 48 digester tanks 48 cesium formate 48 steam condenser 48 pulsed laser 48 thermodynamic efficiency 48 ablator 48 SDACS 48 mixed oxide MOX 48 hat containment dome 48 dewpoint temperature 48 orbital velocity 48 refrigerant 48 turbo generator 48 ECLSS 48 titanium aluminide 48 water reactors PWRs 48 VersaFoam 48 turbo expander 48 aqueous phase 48 gas chromatography GC 48 rotor stator 48 AST# 47 dry sump 47 swing adsorption 47 plutonium americium 47 inlet valves 47 Selective Catalytic Reduction 47 mimics photosynthesis 47 emissions combustor 47 polytetrafluoroethylene PTFE 47 liquid nitrogen fertilizer 47 inorganic salts 47 pressurized canister 47 unpressurized 47 butylene 47 laser diode arrays 47 COAX ® 47 Spinal fluid 47 displaces oxygen 47 hydrofluoric acid 47 ethane methane 47 allowing superheated gases 47 titania nanotubes 47 organic solvents 47 DiesoLIFT TM 47 fission reaction 47 unmodified diesel 47 RenDiesel ® 47 chloride salts 47 photomultiplier tubes 47 ppO2 47 coolant loop 47 impellers 47 asparagine containing food 47 microscopic radioactive particles 47 #yf 47 nitrogen oxide burners 47 graphitic carbon 47 throttle levers 47 dehumidified air 47 samarium cobalt magnets 47 heated windshield washer 47 sulphate aerosols 47 kerogen 47 cam phasing 47 #oF [001] 47 pygas 47 NH3 47 Russian Elektron oxygen 47 changeout 47 Bio DME 47 Soyuz launcher 47 Biomethane 47 interfacial tension 47 condenser coil 47 limestone slurry 47 piezo actuators 47 suppressant foam 47 thixotropic 47 barium chloride 47 ultrasonic vibration 47 rotary screw compressors 47 centrifuged 47 dechlorinated 47 valve actuation 47 exhaust plume 47 superheating 47 vibratory feeder 47 Foton M3 47 gimbaled 47 cartridge filters 47 propeller shafts 47 Discoverer Enterprise drill 47 propanol 47 Methylene Chloride 47 depressurize 47 Absorbent pads 47 gasoline blendstock 47 emit fumes 47 synthetic lubricant 47 Zenit 3SL 47 pressurizer 47 Michoud La. 47 minute gpm 47 saturable 47 TrendSetter solar hot 47 Valvetronic 47 hydrogen chloride HCl 47 relativistic particles 47 spallation 47 Nitrogen 47 tunable diode laser 47 peristaltic pump 47 HySTAT 47 pneumatic actuation 47 roller conveyor 47 microbubbles 47 Pirs module 47 Highly Adaptable Satellite 47 semi permeable membrane 47 toxic hydrogen sulphide 47 Rockot launch 47 Hydrogen 47 airflows 47 toxic gasses 47 NF3 47 Venusian atmosphere 47 LO2 47 preheating 47 HCCI combustion 47 metallic flakes 47 reduces NOx emissions 47 photon beam 47 vaporiser 47 vapors 47 tokamaks 47 hydrogen combustion engine 47 granulate 47 Atlas Centaur 47 sparks ignited flammable 47 NiZn 47 PEMFC 47 corrosive acids 47 microchannels 47 German airship Hindenburg 47 Nafion 47 NFIRE 47 adsorption isotherms 47 acetylene 47 volatilize 47 oxidise 47 hemoglobin molecules 47 catalytic reforming 47 LRO LCROSS 47 propane butane 47 parafoil 47 hydrochloric acids 47 liquids solids 47 methanol cartridge 47 MetOp satellite 47 poisonous gasses 47 ammonium carbonate 47 Vapor Flo ® 47 oxidant 47 Cavitation 47 mooring mast 47 orbital rendezvous 47 exoatmospheric kill vehicle 47 dielectric fluid 47 Microgravity Science Glovebox