常見例句雙語例句Feed valve is float-operated and simply constructed.查看有問題的進水閥運行情況。Check that the valve is installed properly and the feed valve does not leak.檢查閥是否安裝正確；進料閥是否泄漏。Alarm, feed valve or pump starter switch actuates just before the burner switch cuts the firing.警報器，進水閥或泵啓動裝置開關(guān)在燃燒器關(guān)閉燃燒之前啓動。 返回 feed valve