常見(jiàn)例句雙語(yǔ)例句The selection of the clearance of a subsurface pump and the analysis of the leakage between plunger and barrel are of great importance by artificial lifting.抽油泵泵隙的選擇和漏失量分析是機(jī)械采油中的重要問(wèn)題。 返回 subsurface leakage