• A corrugated pipe and a push-button switch are used for detecting the vacuum degree in the box and for switching off or switching on a vacuum system.

    波纹按钮开关用以检测箱内真空度、关断启动真空系统运作。

    youdao

  • A corrugated pipe and a push-button switch are used for detecting the vacuum degree in the box and for switching off or switching on a vacuum system.

    波纹按钮开关用以检测箱内真空度、关断启动真空系统运作。

    youdao

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