检修口
- 网络Access hole;Manhole;access panel;access opening;service port;AP-C
检修口-
检修口上设有观察窗，在搅拌过程中方便观察。
There is an observation window on the hatches available for watching during operation .
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首先通过检修口拆卸阀瓣的后面及其弹簧末端。
Remove through access port with back of clapper first with spring end down .
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企业主要生产船舶内装材料，包括墙板、天花板、防火门、检修口、预制舱室、卫生单元等产品。
The company mainly produces ship contents materials , including wallboards , ceilings , fire doors , maintenance door , prefabricated cabins , health units and other products .