valve bonnet的用法和樣例：
例句
- Check valve tags are typically mounted on the rim of the cap.
止回閥標簽通常安置在閥帽的邊緣上。 - Double Flanged Style Valves bolt up similar to a bolted cap swing check or gate valve.
雙法蘭類型閥門采用螺栓緊固，類似于螺栓閥帽旋啟式止回閥或閘閥。 - Unscrew the bonnet by turning counterclockwise.
反時針方向旋轉擰松閥蓋。 - Screw the cover onto the valve body.
將閥蓋旋在閥體上。
