improved propeller造句

例句与造句

1. the result show, the new technology can improve propeller's velocity while not adding chamber's pressure . 4
   比较结果表明，串联多药室火炮可以在不增加膛压的情况下达到提高弹丸初速的目的。
2. It's difficult to find improved propeller in a sentence. 用improved propeller造句挺难的