机械密封：密封面、密封垫及轴封等元件必须完好，否则将导致过度泄漏，对有磨损或损伤的元件必须更换。

Mechanical seal: seal face, gasket and shaft seal, etc parts must be undamaged, otherwise will result in over leakage, sure to change parts with wear and tear or damage.

youdao

组件所有外露接口均设有防护堵、盖，且封闭良好，接口螺纹和法兰密封面无损伤；

All accessory interfaces should have protection covers with good sealing, there is no damage on the connecting screws and flange sealing surface.

youdao

组件所有外露接口均设有防护堵、盖，且封闭良好，接口螺纹和法兰密封面无损伤；

All accessory interfaces should have protection covers with good sealing, there is no damage on the connecting screws and flange sealing surface.

youdao