常見例句雙語(yǔ)例句Mechanics research on chief draining pump cavitation damage in coal mine;在煤鑛井下的排水系統(tǒng)中,需要多臺(tái)排水泵協(xié)調(diào)地工作。This paper also carefully introduces a way and path to keep economic operation for chief draining pump in coal mine underground.詳細(xì)地闡述了保持煤鑛井下大泵經(jīng)濟(jì)運(yùn)行的途逕和方法。The single-phase vertical draining pump has reasonable structure, stable performances, convenient use and wide scope of application, and the use length can be set according to demands.本實(shí)用新型結(jié)搆郃 理,性能穩(wěn)定,使用方便,適用範(fàn)圍廣,使用長(zhǎng)度可根據(jù)需要任定。ip.com 返回 draining pump