relief holes meaning in English
减载炮眼
Examples
- Relief hole diameter
排料孔直径 - There may be exceptions to this if bypass piping is welded to the valve body or if a pressure relief hole is drilled in one side of the valve
但是也有例外,比如有旁通管焊接在阀体上或在阀门的一端钻有一个减压孔。