Finally, to control negative influence, a lot of work must DE done involving exploitation technology, engineering geology, disposal of sewage and rubbish, land recultivation, tax management and so on.
文章最后指出，需要从开发开采技术、工程地质、“三废”处理、土地复垦、税收管理等各方面强化对不利影响的控制。
Special Mill Features: Hydraulic Automatic Gauge Control. Positive and Negative Work Roll Bending. Intermediate Roll Shifting.
轧机特点：液压自动凸度控制工作辊的平衡与正、负弯。中间辊的侧移。
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