manually operated valve 中文意思是什麼
manually operated valve
解釋
手動操縱閥-
All units, whether installed directly on a valve or on a floor stand, can be manually operated in case of power failure
所有裝置,無論是直接安裝在閥門上,還是安裝在地軸架上,都可以在出現電力故障時,進行手動操作。
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