夏甸金矿排水系统优化前管理困难，优化后采用集中排水，不但减少了排水费用，而且管理非常方便。
Ever since concentrate optimizing put into practice, not only the optimizing charge is decreased, but also it is very convenient to manage.
夏甸金矿排水系统优化前管理困难，优化后采用集中排水，不但减少了排水费用，而且管理非常方便。
Ever since concentrate optimizing put into practice, not only the optimizing charge is decreased, but also it is very convenient to manage.
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