启动电动机，真空泵开始工作，吸附台面产生吸附效果。

The starting motor, the vacuum pump starts to work, adsorbs the floor to produce the adsorption results.

youdao

启动电动机，真空泵开始工作，吸附台面产生吸附效果。

The starting motor, the vacuum pump starts to work, adsorbs the floor to produce the adsorption results.

youdao