轴颈在轴承面上摩擦.The journal rubs against the bearing surface.此外,在较高的运行速率时, 自转轴承的寿命急剧下降.In addition, spin - bearing life is sharply reduced at higher operating speeds.因此用 “ 外生压轴承 ” 一词更佳.The term " externally pressurized bearing...
The earth rotates on its axis once every 24 hours.地球每24小时依其轴心自转一次.The camshaft rotates in phase with the crankshaft, but at half its speed.凸轮轴和曲轴协调旋转, 但速度仅是曲轴的一半.The earth rotates once a day on its axis.地球绕它的自转轴一天旋转一周....
He lieth under the shady trees , in the covert of the reed, and fens.它伏在莲叶之下, 卧在芦苇隐密处和水洼子里.The depth of covert racism in my own profession frightens me.我所从事的职业中暗藏着如此深的种族主义偏见，这让我感到害怕。The army carried out covert surveillan...
这架钢琴的音色具有一种古雅的 老式 风味.The piano has a quaint old - world tone about it.这把小提琴的音色很好.This violin has very good tone.不同的触键方法,会产生不同的音色表现.Different Methods : To touch the keys will result in different representation of timbre....