- coefficient of metal efficiency
- 金属: metals genus
- 利用系数: operating ratio; utilization ...
- 可利用系数: availability conefficient; available factor
- 利用系数: availability ratio; coefficient of occupation; coefficient of use; coefficient of utilization; factor of utilization; occupation factor; output coefficient; productivity ratio; ratio of utilization; service factor; unit capacity factor; usage factor; use factor; utility factor; utilization coefficient; utilization factor; utilization rate
- 热利用系数: coefficient of heat efficiency; heat utilization factor
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