Shell has one centralpump liquid inhalation inhalation tube 4 and 5 connected.
泵壳中央有一液体吸入4与吸入管5连接。
2
The practice proves that it has complete protection functions and convenient maintenance, which is suitable for underground centralpump station of coal mine.
实践表明,其保护功能齐全,使用维护方便,适于在煤矿井下中央水泵房应用。
3
Along with the technique reformation of the mine and the exaltation of the production abilities, the drainage ability of the original centralpump house of water can't satisfy it.