Beijing also built a number of new water purification plants for daily water recycling, replaced dated equipment at its power plants and retrofitted gas stations citywide.

北京还建造了大量的新型水净化基地来改善日常的水循环，在全市范围内的发电站和改造的燃气站中用来替代以往的一批陈旧设备。

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Required to choose KM3Q3. Type 2 gas occurrence boiler and purification equipment four sets, one sets for standby equipment;

需选择KM3Q3.2型 煤气发生炉 及净化设备四台套，其中一台套为备用设备；

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