通过真空泵减压，使真空室里面的负压慢慢增大，在产品供应漏斗和真空室之间产生压差，从而实现包装过程。
The idea is with the help of vacuum pump to increase the pressure difference between material hopper and vacuum chamber, hence the packing environment can be achieved.
微型台式真空泵是专为化学检验，临床检验、生物工程、冶金、环保等实验室设计制造的。
The mini-table type vacuum pump is manufactured specially for laboratories such as chemical inspection, clinic inspection, bioengineering, metallurgy, environmental protection, etc.
在适当的压强下，工艺室被接通高真空泵系统抽气，以继续降低工艺室的压强。
At the appropriate pressure, the chamber is opened to a high-vacuum pumping system that continues to reduce the pressure of the process chamber.
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