Aimed at the current situation and existing problems before reform of slush water treatment system of Qianjiaying Coal Mine,the reform necessity and specific plan are brought forward.
英
美
- 就钱家营矿煤泥水处理系统改造前的现状及症结所在,提出了改造的必要性及具体改造方案,对改造前后的各项经济指标进行了比较。