较轻的推进器采用液态氢, 较重的采用自燃推进剂.The lighter version used liquid hydrogen, the heavier used hypergolic propellants.这个工厂为弹道导弹生产推进剂。The factory produces propellant for ballistic missiles.挤压 式 发动机对推进剂中溶解的气体特别敏感.Pressure - fed engine...
He was jamming with his saxophone.他在即兴吹奏萨克斯管。Robinovitz pushed past the queue jamming the passageway outside the infirmary.罗宾诺维茨挤过在医务室门外阻塞了通道的长队.There's something jamming ( up ) the lock.有什 麽 东西把锁卡住了....
“我想我听到电话铃在响。”——“好的，我明白你的意思了。”"I think I hear the telephone ringing."—"Okay, I can take a hint."一旦发现有泄漏，警报就会响起来。Any escape, once it's detected, sets off the alarm.他回到机场时听到自己的汽车报警器响了。He returned to the airport to find...
Bohr's unposted letter was written in response to Heisenberg's apologia.玻尔针对海森伯的辩解写下了这封未发出的信.For this reason, historians focus more on Heisenberg body.为此, 历史学家们把目光集中在海森伯身上.Critical temperatures of anisotropic H...