以长春市双阳污水处理厂为例，介绍了CAST工艺在冬季低温条件下活性污泥培养与调试运行的控制方法。
Taking Changchun Shuangyang Wastewater Treatment Plant as example, the controlling methods of activated sludge culture and debugging operation of CAST at low temperature in the winter were introduced.
本文运用文献资料法、专家访谈法、问卷调查法、逻辑分析法、数理统计法等研究方法，对长春市八所普通高校开设冰雪运动课程的现状进行研究分析。
Through research aimed at colleges and universities in Changchun City for the creation of ice and snow sports lessons, building a new snow sports programs provide a reference system.
利用层次分析法对长春市道路客运质量进行评价，给出综合评价方法，并结合市某客运公司实际对该公司客运服务质量进行评价打分。
The analytic hierarchy process (AHP) is employed to evaluate the quality of the city road passenger transportation. A synthesized method is given and practically used in a passenger transport company.
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