Manned submersibles, like spaceships, must maintain living conditions in an unnatural environment.载人的潜水器与宇宙飞船一样, 必须在非自然的环境下保持生存条件.You have to zap the invading spaceships to get points.(玩电动玩具等)你必须干掉入侵的太空船才能得分.Spaceships m...
戈德史密斯修理了屋顶，以确保房屋能够抗风。Goldsmith has repaired the roof to ensure the house is wind-proof.很快，整个武装部队开始公然抗命。Soon the entire armed forces were in open revolt.公民抗命，不管是暴力还是非暴力的，都是故意犯法。Civil disobedience, violent or non-violent, ...
精确地预计弯头和管件的影响尚无方法可循.No methods are available for the accurate prediction of the effect of bends and fittings.我们常用弯头(管、兰、通、小关)为一种管件.We usually use elbow flangetee, reducer as a kind of pipe fitting.在人井2中,将弯头卸下,便于设备进入.Debu...