valve center的用法和樣例:
例句
- Remove the union nuts and end connectors from the valve cartridge first.
首先從閥芯上拆卸管接頭螺母和埠連接件。
- It is held in place by the bonnet which is attached to the valve body by studs and nuts.
閥蓋將閥芯固定在適當位置,閥蓋由螺線和螺母安裝在閥體上。
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