一九一一年五月,发现“蜉蝣号”飞艇的升力不足.In May 1911 the Mayfly was found to lack sufficient lift to get airborne.桥面横断面可能由于过量的升力而发生扭转.The cross section of a bridge deck may twist as a result of excessive life.这一诱导气流产生正的力矩,该力矩随升力或迎角a的增加而增加...
家具木工必须是技艺高超的手艺人.A cabinet maker must be a master craftsman.我知道,你是个有本领的手艺人.I know you're a competent artisan.你和你的仁慈会为你带来好处, 但城市去做个正直的手艺人.You and your kind will drive good, honest craftsmen to the wall....
Its present economic ills on the home front are largely the result of overspending.它目前国内方面的经济弊病主要源自支出过度。At the committee meeting, I crossed swords with Professor Smith over her department's overspending.在委员会会议上, 我与史...