当然, 坐标系 ( x, y, z ) 轴向的选择是任意的.The choice of orientation of the ( x, y, z ) coordinate system is, of course, quite arbitrary.除此之外, 具有曲线型齿线之齿轮在运转时亦不会产生轴向的推力.Moreover, a gear pair with curvilinear - tooth traces operates wi...
Clark, the clockmaker, cooked the lark's clock.钟表匠克拉克烹煮云雀的斗篷.The idea for a facsimile transmission was first proposed by Scottish clockmaker Alexander Bain in 1843.传真传输的设想是由爱尔兰钟表匠亚历山大.贝恩于1843年首次提出....
He lived on a diet of water and tinned fish.他仅靠喝水、吃鱼罐头过活。"He'll have to go on a diet," Ballard quipped.“他得减肥啦,”巴拉德俏皮地说。I'm forever on a diet, since I put on weight easily.我永远都在减肥,因为我很容易长胖。...
螺纹能牢牢地咬合卡紧。The screw threads will be able to get a good grip.它是由胎儿的组织和母体的组织构成,二者呈指状咬合状.It consists of foetal tissues and mother's tissues with the tissues interdigitated.〔摘要〕目的: 研究正常牙合牙尖交错位咬合接触的基本规律.Objective : To i...