他研究了摆线 、 圆外旋轮线和四点圆的旋轮线的几何性质.He investigates geometrical properties of cycloids , epicycloids, and hypocycloids.而在答应出现动力性外旋时则出现了更明显的滞后现象.Hysteresis was significantly greater when dynamic external rotation was allowed to o...
It is less polluting than power stations fuelled by oil, coal and gas.比起以石油、煤和天然气为燃料的发电站来说，它的污染要小。the exhaust fumes that are polluting our cities污染我们城市的废气The judge levied a ten thousand dollars fine against the factory f...
He had returned to England in an aircraft carrier no less.他竟然坐航空母舰回的英格兰。The airlines have invested enormous sums in new, quieter aircraft.航空公司投入了大笔资金购买噪音较小的新型飞机。The aircraft made an unscheduled landing after developing a...
She worked indefatigably and enthusiastically to interest the young in music.为了激发年轻人对音乐的兴趣，她一直孜孜不倦、积极热情地工作。The announcement was greeted enthusiastically.公告受到人们的热烈欢迎。Critics enthusiastically acclaimed the new play.评论家们热情洋...
The statement salutes the changes of the past year.这一表态称赞了过去一年的变革。Poulengey salutes, and stands at the door awaiting orders.波仑日行礼, 站在门口听侯命令.A giant of the world salutes you.一位世界的伟人向你敬礼呢....
I heard snatches of the conversation.我听见了一点谈话内容。Through the open windows snatches of melody float on the night air.乐曲断断续续地从敞开的窗户中飘出,在夜空中回荡.He whistled and sang snatches of songs.他吹口哨并唱了几段小曲。...