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