One-stage or two-stage pumps feature up and down movement of flexible diaphragm during the mechanical stage which induces a flow of gas through the pump head, generating a vacuum.
单级或双级泵是通过橡胶膜片上下往复运动，引导气流通过泵头，形成真空状态。
One-stage or two-stage pumps feature up and down movement of flexible diaphragm during the mechanical stage which induces a flow of gas through the pump head, generating a vacuum.
单级或双级泵是通过橡胶膜片上下往复运动，引导气流通过泵头，形成真空状态。
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