The lighter version used liquid hydrogen, the heavier used hypergolic propellants.较轻的推进器采用液态氢, 较重的采用自燃推进剂.Pressure - fed engines are particularly susceptible to dissolved gas in the propellants.挤压 式 发动机对推进剂中溶解的气体特别敏感.Thi...
What is this guck on the bottom of my shoe?我鞋底上的这人黏糊糊的东西是啥玩意儿?Guck Dir meine Visitenkarte an.自己看名片吧.He ! Guck'mal , das sieht ( doch ) so aus als klaute der Typ etwas.哎, 你看那个人好像在偷东西....
The absorption of many molecular layers could be reestablished by rinsing the foils with tap water.多分子层的吸附作用可用自来水淋洗金属箔而重新实现.Carbon stripping foils were prepared by AC or DC arc discharge method.碳剥离膜可用交流电弧法或直流电弧法来制备,也可用交直...