emission
🇺🇸
/ɪˈmɪʃn/
🇬🇧
/ɪˈmɪʃn/
the act of sending out light, heat, or gas
The emission of light from the bulb was very bright.
灯泡发出的光非常明亮。
gas or other substance that is sent out into the air
The factory reduced its harmful emission by using new filters.
工厂通过使用新过滤器减少了有害排放物。