propellants造句
Questionsaboutstorabilitymay,however,ariseforthenewer,higherenergysolidpropellants.However,fromwhatIgather,"hybrid"rocketenginesusebothsolidandliquidorgaspropellants.Thecomponentsofsolidpropellantsa...
Questionsaboutstorabilitymay,however,ariseforthenewer,higherenergysolidpropellants.However,fromwhatIgather,"hybrid"rocketenginesusebothsolidandliquidorgaspropellants.Thecomponentsofsolidpropellantsa...