He was already buffing the car's hubs.他已经在擦汽车轮毂了。I greased front and rear hubs and adjusted the brakes.我在前后轮毂上都抹了润滑油，还调校了刹车。Shafts and hubs are usually fastened together by means of keys.轴和轮毂通常用键固定在一起....
Familiar with batch manipulation of IBM mainframe, JCL language, partial AIX basic commands.熟悉的IBM主机批量操作, JCL语言, AIX部分基础命令.Based on this analyze , a preliminary channel plan for JCL is also put forwarded.并且在最后提出了新的分销渠道的方...