smoke dissipation

• 排烟

smoke dissipation的用法和样例：

例句

1. The factory chimneys poured smoke into the air.
   工厂的烟囱向空中排烟。
2. We find that the existing smoke protection settings can not control the smoke diffusing effetely at the same time.
   同时发现地铁车站原防排烟系统设置无法对火灾时的烟气进行有效的控制。