concentrated combustion

• 集中燃烧

concentrated combustion的用法和样例：

例句

1. The smoke formed by their combustion is negligible.
   由它燃烧所生成的烟是可忽略的。
2. Carbon dioxide does not burn, nor does it support combustion.
   二氧化碳不能燃烧，它也不能助燃。