Frictional forces may also act when there is no relative motion.在无相对运动的情况下,也可以有摩擦力的作用.Viswanathan has analyzed the frictional interaction between fiber fringes.维斯沃纳森分析了纤维须头间的相互摩擦作用.This depends on the estimation of the t...
Alpha-Bravo-Zulu 643 to Saltezar, do you read me? Over.阿尔法－布拉沃－祖鲁643呼叫萨德扎，能听到我的声音吗？完毕。"Bravo, Rena! You're right," the students said.“好样的，雷娜！你是对的，”学生们说道。Howard Hawks hit paydirt with "Rio Bravo".霍华德·霍克斯凭借影片《赤胆屠龙》一夜成...
The Premier's burial was a solemn occasion.总理的葬礼是个庄严的场面。He was a slim, solemn, darkly handsome young man.他是个身材修长、表情庄重、皮肤黝黑的帅小伙。He is so solemn that everyone who sees him filches.他这人太严肃,谁见了他都打憷.Drums and cymbals beat...