coal losses

• 煤损失

coal losses的用法和样例：

例句

1. Finally, some methods calculating cast blasting parameters and pre-splitting blast parameters and some advices of minish losing coal were brought forward.
   最后给出了确定高台阶抛掷爆破参数和预裂爆破参数的方法，并提出了减小煤损失的一些措施。