volatile constituent

• 挥发性组分

volatile constituent的用法和样例：

例句

1. A hypothetical substance formerly thought to be a volatile constituent of all combustible substances released as flame in combustion.
   燃素，热素原来假设的在所有燃烧物质中挥发性的一种物质成分，在燃烧中作为火焰而被释放出来