filler coke

• 填充焦炭

filler coke的用法和样例：

例句

1. Without coke iron cannot be smelted.
   没有焦炭就不能炼铁。
2. First we had to clear the ash and coke out of the boiler.
   首先我们得清除锅炉里的炉灰和焦炭。