flange bolt hole

• 法兰螺栓孔

flange bolt hole的用法和样例：

例句

1. Do not rely on the flange bolting to support the valve or connecting pipeline.
   不能依赖法兰螺栓来支撑阀门或连接管道。
2. The elastomer pinch sleeve shall be one piece construction with flanges, drilled to be retained by the flange bolts.
   人造橡胶夹管套管应该是一件式结构，并带法兰安装孔，以便固定法兰螺栓。