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...
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...