Direct discharge or improper management will lead to the pollution of water body.
如果直接排放或处置不当,会造成水体的二次污染。
参考来源 - 利用城市污水厂污泥培养海洋微藻技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Direct discharge of yellow water without treatment would result in environmental pollution.
黄水不经处理直接排放，会造成环境污染。
Direct discharge of coal mine methane into the air not only causes waste of resource, but increases the greenhouse effect.
矿井乏风直接排放到大气中，不仅造成了资源的浪费，而且加剧了温室效应。
In the process of Shanxi formation seam mining in Shaqu Colliery, the seam roof and floor sandrock aquifers constitute the direct discharge aquifers.
沙曲煤矿山西组煤层开采过程中，煤层顶底板砂岩含水层构成煤层开采时的直接充水含水层。
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