例句 /

The vacuum pump is used to provide a vacuum environment for the freezing-drying cabinet and the condensers so as to enable the moisture in the materials to sublimate in the vacuum.

The vacuum pump is used to provide a vacuum environment for the freezing-drying cabinet and the condensers so as to enable the moisture in the materials to sublimate in the vacuum.

真空泵的作用是给冻干箱和冷凝器提供一个真空环境,使物料的水份可以在真空下进行升华。