污垢、尘埃和花粉则是随环境大气被压缩机抽入的。

Dirt, dust and pollen is with the environment air is pumped in compressor.

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对设备抽真空，然后充入不活泼气体，如氮。

Evacuate the equipment and break vacuum with an inert gas, such as nitrogen.

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对设备抽真空，然后充入不活泼气体，如氮。

Evacuate the equipment and break vacuum with an inert gas, such as nitrogen.

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