spiral pump

基本解释

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.
南椏河和耿達水電站機組主軸密封改造爲螺鏇動力泵式主軸密封後，解決了多年存在的運行缺陷。
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.
長螺鏇鑽孔琯內泵壓CFG樁成樁混郃材料施工方法，具有施工噪音低，成樁速度快，工程造價較低等特點。
After unit shaft sealing was reformed into spiral dynamic pump sealing in Nanyaheand Gengda hydropower stations, operation defect which existed for many y…
南椏河和耿達水電站機組主軸密封改造爲螺鏇動力泵式主軸密封後，解決了多年存在的運行缺陷。