常見例句雙語例句The entry with rubber sealing ring are widely used in the design of low-voltage flameproof motor.橡膠密封圈式間接引入裝置，廣泛應(yīng)用于低壓隔爆型電機中。The existing defect of overload, open phase protection of minitype flameproof motor used in coal mine was analysed and its improved protection scheme was presented.分析了煤礦井下小型隔爆電動機過載、斷相保護存在的缺陷，提出了改進的保護方案。Milling machining is carried out on common lathe. This method provides a new approach for increasing the surface roughness of terminal box flameproof surface of motor.在普通車床上進行銑別加工，對提高電視接線企隔爆面表面粗糙度提供了一條新途徑。 返回 flameproof motor