emission /iˈmiʃən/ n. [u]发射；[c]发射物：the effects of lead emission on health铅的排放对健康的影响；cuts in carbon dioxide emissions二氧化碳排放量的减少Most scientists accept that climate change is linked to carbon emissions.大多数科学家都相信气候变化与排放的含碳气体有关。
emit /iˈmit/ vt. 放射，喷出，散发：emit a man-made/artificial satellite 发射一颗人造卫星An engine emits smoke from its funnel into the air. 机车从烟囱里把烟排放到大气中。［考句］The beam that is emitted by a laser differs in several ways from the light that comes out of a flashlight. 由激光器发射的光束和从闪光灯里发出来的光在很多方面是不同的。
