The so-called vacuum drying is heating &drying of the materials under vacuum conditions to which, vacuum pump is adopted for air-bleed and humidity suction thus speedy drying is reached.

• 真空干燥，就是将被干燥物料处于真空条件下，进行加热干燥，它是利用真空泵进行抽气抽湿，加快了干燥速度。