基本解釋[管理學(xué)]封閉豎井英漢例句雙語例句Totally enclosed, non-ventilated, hermetically sealed submersible type. Features include 416 stainless steel shaft, tandem mechanical seals (one inside an oil chamber and one outside);全外殼、非風(fēng)冷、全封閉潛水類型。配置416不銹鋼軸，串聯(lián)機械式密封（一個在油室內(nèi)，一個在外部）enclosed shaft更多例句詞組短語短語enclosed cam shaft 閉式凸輪軸enclosed line shaft bearing 密閉的中間軸軸承enclosed propeller shaft 閉式螺旋槳軸shaft enclosed tube 軸的密封套管enclosed shaft更多詞組專業(yè)釋義管理學(xué)封閉豎井