municipal was ewater
英
美
- 城市污水
双语例句
- The dewatered municipal wastewater sludge was used for floor tile making.
研究了用城市污水处理厂脱水污泥烧制地砖的抗压性能及其主要影响因素。 - Federal and state regulations require higher treatment levels than in the past for municipal wastewaters.
联邦和州的法规要求比过去对城市污水的处理有更高的水平。
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