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mbbr流化床过滤的制作与调试教程，解决怎样把k1与k3填料滚动均匀
本期制作流化床过滤，就是一个移动生物床。用来处理养鱼污水的简易装置。
玻璃缸和泡沫箱养鱼，虹吸管，沉淀仓等装备视频合集197/299
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