Related by context. Frequent words. (Click for all words.) 51 stoichiometric 50 Hydrazine 50 Technetium 50 nitrogen oxide NOx emissions 48 MeV 48 feedwater 48 sorption 47 overpressure 47 compressive strength 47 MgO 47 technetium #m 47 electrolyser 47 H#O# 47 oxidizer 47 radionuclide 47 uprates 47 ramjet 47 velocities 47 gaseous hydrogen 47 absorbance 46 curies 46 reactants 46 kPa 46 ceria 46 liquid propellant 46 hydride 45 subcritical 45 #.#nm [001] 45 #μA [002] 45 gaseous oxygen 45 2kW 45 reactant 45 SiO2 45 permittivity 44 coefficient 44 sodium borohydride 44 levelized cost 44 fission 44 alpha particles 44 de ionized 44 crystallinity 44 metal hydride 44 Caesium 44 irradiance 44 tokamak 44 MPa 44 oxidizers 44 toroidal 44 #psi [002] 44 hydrostatic 43 electron density 43 americium 43 ambient temperature 43 superconducting magnet 43 1kW 43 pentane 43 #psi [001] 43 cm3 43 R#a 43 temperature coefficient 43 fluence 43 combustion gases 43 lbf 43 combustor 43 luminous flux 43 breeder reactors 43 emissivity 43 Supercritical 43 adiabatic 43 transmittance 43 fuel 43 coating thickness 42 exothermic 42 phosphine 42 SiO 2 42 #KW [001] 42 exceedance 42 sulfur dioxide emission 42 backpressure 42 Conductivity 42 radionuclides 42 radioactive decay 42 tropospheric 42 μg L 42 dispersive 42 propellant 42 compensator 42 SF6 42 output voltage 42 aromatic hydrocarbons 42 decibels dB 42 compressibility 42 magnetic flux 42 unpressurized 42 PEM fuel 42 combustion 42 argon gas 42 elemental composition 41 cetane 41 #ppb [003] 41 microchannel