英语翻译Chemical treatment using alum or iron salts is the most
英语翻译
Chemical treatment using alum or iron salts is the most commonly used technology for phosphorus removal ,but since the early 1980s success in full-scale plant biological phosphorus removal has encouraged further use of the technology.
Chemical treatment using alum or iron salts is the most commonly used technology for phosphorus removal ,but since the early 1980s success in full-scale plant biological phosphorus removal has encouraged further use of the technology.
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iamcool007 幼苗
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明矾或铁盐法处理化学除磷是最常用的技术，但自二十世纪八十年代初以来成功，在工业装置生物除磷技术的进一步鼓励使用。
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希望对你有帮助。嘿嘿
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