Methods An inclined tube well collecting percolating ground water with powerful pump in the water-bearing stratum in the depth of30 meters below the riverbed of Huanghe River was built.

  • 方法打斜管井深入黄河河床以下30m处,以大功率水泵抽水,经加氯消毒后供生活饮用。

  • 互联网摘选 2025-02-23 18:36:23

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