- powder factor
- 炸药: explosive; explosive charges ...
- 有效: effective; valid; efficaciou ...
- 系数: coefficient; ratio; modulus; ...
- 净有效系数: net effectiveness factor
- 有效系数: availability factor; available coefficient; available factor; avf; coefficient of efficiency; coefficient of elasticity; coefficient of performance; effective coefficient; effectiveness factor; efficacy; useful efficiency
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