inert substance

• 惰性物质

inert substance的用法和样例：

例句

1. Elemental nitrogen is a very unreactive and inert material.
   元素氮是一个十分不活跃的惰性物质。
2. The sewer lines may then become clogged with inert materials.
   废水管路可能被这种惰性物质堵塞。