例句 |
This engine has only got three moving parts.这台发动机只有三个可活动的零件。These tools can also be used to monitor the condition of the moving parts within a printer.这些工具也可用来监控打印机内活动部件的状态。Lubricate all moving parts with grease.给所有活动部件加润滑油。All the moving parts of the engine must be kept well-oiled.发动机上所有的活动部件都必须上足润滑油。 |