The water seal technology is used to solve the problem of the collection rate of the mother liquid in situ leach mining of the rare earth mineral.

介绍了为解决离子型稀土矿用原地浸析法开采时母液收集难的问题所采取的水封闭工艺。

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Responsible for the collection work with price water rate above the plan.

负责超计划加价水费的征收工作。

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The rate of tax paid by each household is also used to calculate waste water and refuse collection charges.

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