运行是完全自动的, 你只需开关机器就行了.The movements of machines are completely automatic, you only need to start and stop the machines.这种过程应该是自动的, 本能的.The process should be automatic, instinctive.还有你是要自动的还是用手操作的传动系统.And did you want an a...
他们的生活水平勉强在最低水平线以上.They were living barely above the level of subsistence.海港的灯火在水平线上闪烁着.Harbour lights were blinking on the horizon.我们也可以将矩阵分块,即在行以及列之间画一些水平线和垂直线.We may partition matrices by drawing horizontal and vertica...
最普通的精加工工序是用机械的方法, 如研磨, 磨削或用磨料抛光.The most common finishing operations are mechanical, such as milling, grinding, or polishing with abrasives.实验中采用磨料磨损的方式.Abrasion wearis taken as the main wear mode in the experiments.磨料水射...