常見例句The device adopted closed loop control principle ,it differed from the traditional intermissive、open loop control device. 裝置採用閉環(huán)控制，設計方案和傳統(tǒng)的間歇式的、開環(huán)控制裝置有著本質(zhì)的區(qū)別。For the wells with inadequate liquid supplies，speed-adjustable motors and intelligent intermissive pumping technology should be used. 對於供液不足井，應採用調(diào)速電機、智能間抽技術。Keywords intermissive oil-drawing;liquid surface change;indicator diagram; 間抽;液麪變化;示功圖;intermissive oil - drawing 間抽intermissive oil-drawing 間抽 返回 intermissive