We met at a bar called the Flamingo.我们在一家名为“火烈鸟”的酒吧相遇。This is the only species of flamingo in the region, easily recognized by its pink plumage.这是那个地区唯一一种火烈鸟, 很容易凭粉红色的羽毛辨认出来.In my family, I am a flamingo in a flock of pi...
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...