Did you say Edward Pratt?您是说EdwardPratt 吗 ?Green and Pratt employed a rotating - mirror camera with an explosively driven wedge.Green和Pratt使用旋转镜头的摄影机,其具有一种爆发性的楔形物.Pratt & Whitney has announced that it will be making furt...
The British are not famed for their philosophy and tend to be more practically minded.英国人不是以其哲学思想闻名，而是往往更注重实际。It is proved practically that chemical grouting can do with it.由于翻浆冒泥造成基床的软化和道碴板结引起道床整体弹性的降低,直接影响列车安全运营.Practi...
The footman went ahead against the hurricane.那男仆顶着飓风继续前进.A large plate came skimming out , straight at the footman's head.一只大盘子直向听差的脑袋飞来.She sat down and accepted a glass from the footman.她坐下来,从仆人手里接过杯子....
Metals which were mutually soluble would tend to give strong junctions.可互溶的金属趋向于产生牢固的结合点.All junctions of floor, wall and ceilings shall be sealed and preferably coved.地面 、 墙壁和天花板的接缝必须密封,最好做成圆角.A semiconductor diode arra...