spiral pump

基本解釋

After unit shaft sealing was reformed into spiral dynamic pump sealing in Nanyaheand Gengda hydropower stations, operation defect which existed for many years is disappeared.
南椏河和耿達(dá)水電站機(jī)組主軸密封改造為螺旋動(dòng)力泵式主軸密封后，解決了多年存在的運(yùn)行缺陷。
Long spiral hole pump pressure CFG(Cement Flyash Gravel) pile construction technology has such advantages as small noise, quick construction rate and low construction price.
長(zhǎng)螺旋鉆孔管內(nèi)泵壓CFG樁成樁混合材料施工方法，具有施工噪音低，成樁速度快，工程造價(jià)較低等特點(diǎn)。
After unit shaft sealing was reformed into spiral dynamic pump sealing in Nanyaheand Gengda hydropower stations, operation defect which existed for many y…
南椏河和耿達(dá)水電站機(jī)組主軸密封改造為螺旋動(dòng)力泵式主軸密封后，解決了多年存在的運(yùn)行缺陷。