常見例句雙語例句In the courtyard there is a glass and steel structure building. It is the management and service center of Winch and the auxiliary facilities office.在庭院里有一間有玻璃和鋼結(jié)構(gòu)建成的副樓，是為大廈管理服務(wù)中心所在和大廈輔助配套設(shè)施用房。blog.sina.com.cnThis paper introduces the work principle of four-quadrant operating high-pressure frequency converter, and its application in coal mine auxiliary shaft winch innovation system.介紹了四象限運行高壓變頻器的工作原理，并應(yīng)用到煤礦副井絞車改造系統(tǒng)。 返回 auxiliary winch