coal utilizaton rate
英
美
- coal n.煤；木炭vt.烧成炭；供应煤vi.加煤；装煤
- rate n.比率；速度；价格；费用；等级v.认为；估价；定等级；值得；怒斥；责骂
- This product can increase the rate of roughage, lower investment cost.
增加刍料利用率，降低饲养成本。
- And with the increase of the pedestrian volume, the usage rate deceases.
行人流量和人行道利用率成反比。
