加速度和速度都是矢量。Acceleration and velocity are both vectors.所有太空人都应能承受加速度.All spacemen must be able to bear acceleration.摆式加速度计的设计与陀螺设计有很多共同之处.The pendulous accelerometer design had much in common with the gyro design....
Where Marcella lives, the rents are fairly cheap, but a little further north it'sa different story.玛塞拉居住的地方，租金比较便宜，但稍稍再往北一点情况就不同了。Marcella : I don't know, darling . Things are different now.我不知道, 亲爱的. 现在不同了.Mar...
Since his retirement, Crowe has differed with the President on several issues.退休以后，克罗在好几个问题上都与总统意见相左。The two brothers differed about politics.这兄弟俩政见不同.The two leaders had differed on the issue of sanctions.两位领导人在制裁问题上存在意...