lump of fuel

• 燃料块

lump of fuel的用法和样例：

例句

1. During burning, the fuel segments get thinner and thinner, sometimes breaking off, which makes the motor run rough or even become unstable.
   而燃料块在燃烧的时候会变得越来越薄，有时候还会散落开来，使得马达运转不顺，甚至变得不稳定。