检查柱塞摩擦或旋转柱塞的翻译：Check the piston friction or rotating piston 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Check the piston or rotary piston friction

Check the piston friction or rotating piston

Inspects the plunger to rub or the revolving plunger

Check the piston friction or rotary plunger

Check the piston friction or rotating piston