常見例句雙語例句These research results possess a certain reference value to the design and application of the screw pump.這些研究結(jié)果對地面驅(qū)動螺桿泵的設(shè)計(jì)及應(yīng)用有一定參考價(jià)值。There is no internal scale product of dry screw pump owing to the late research starting, so like products are all depend on importing and the price is very expensive.由于國內(nèi)螺桿干泵的研究起步較晚，目前還沒有規(guī)模化的產(chǎn)品，同類產(chǎn)品全部依靠進(jìn)口，價(jià)格十分昂貴。B, single screw pump before adding buffer tank in pipeline, the buffering can store a certain amount of crude oil, and a current limiting device for mixture pumps supply a certain amount of crude oil.單螺桿泵前管路中增設(shè)緩沖罐，在緩沖罐里儲存一定量的原油，并用一套限流裝置給混輸泵供給一定量的原油。b-yd.com 返回 screw pump