stem fire 中文意思是什麼
stem fire
解釋
樹干火-
Align adapter bushing or gear operator ( 3 ) bore with valve stem ( 5 ). note that on fire protection models adaptor bushings may differ from illustration
用閥門的閥桿( 5 )對準適配器襯套或持論操作機構( 3 )鏜孔。注意:消防防火型號閥門的適配器襯套可能與圖示不同。
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