double-acting spring 中文意思是什麼
double-acting spring
解釋
雙向彈簧-
Quarter turn, double acting and spring return type with a totally enclosed design and no external moving linkages
四分之一轉,雙動和彈簧回位類型,具有全封閉結構,沒有外部活動連接。 -
Diaphragm actuators available are : double acting ( air pressure required open or close ), direct acting ( air pressure required to close, mechanical spring to open ) or reverse acting ( mechanical spring to close, air pressure required to open )
隔膜執行機構適用於:雙動(氣壓開啟或關閉) ,直接作用(氣壓關閉,機械彈簧開啟)或反向作用(機械彈簧關閉,氣壓開啟) 。
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