參考書目:《天然氣集輸系統(tǒng)——常用閥門手冊》,劉成林主編,P208 根據(jù)公式S=N/n進(jìn)行計算 N為電動裝置輸出軸轉(zhuǎn)圈數(shù),圈;n為電動裝置輸出軸轉(zhuǎn)速,r/min;S為閥門啟閉時間,min |
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