Our air quality now suffers from the effects of pollutants emitted directly from our cars.

我们的空气质量一直受到汽车排放污染物的影响。

The EPA says so far toxins are not being emitted into the air.

环保署表示，到目前为止，有毒物质还没有排放到空气中。

The ball emitted a gentle, blue light.

球发出了柔和的蓝光。

So there's actually less restriction on mercury that power plants could emit.

所以实发电厂排放的汞的限制较少。

Microsoft has announced plans to remove all the carbon dioxide that is ever emitted by 2050.

微软宣布计划在2050年之前移除释放的所有氧化碳。

Higher-wattage lamps emitted higher levels of harmful UV.

高功率的灯发射出高水平的有害紫外光。

Historically, G20 countries have emitted the majority of greenhouse gases.

看，G20国家排放了大部分温室气体。

But where did the steamy water emitted from volcanoes come from?

但是火山的水源来自何方？

But the artificial blue light emitted by computer screens can suppress its release.

但是电脑屏幕发出的人造蓝光会抑制褪黑素的释放。

The light emitted by your devices releases wakeful chemicals in your brain.

设备的屏幕光会在大脑中释放出让人清醒的化学物质。

The blue light that's emitted from these devices will actually mess up your sleep patterns.

这些设备中发射出来的蓝光会影响你的睡眠模式。

While Electromagnetic Radiations (EMR) emitted by computers and laptops bring another set of issues.

而电脑和笔记本电脑发出的电磁辐射（EMR）带来了另一系列问题。

Another approach involves looking at x-rays emitted by iron around a black hole.

还有一种方法，就是看黑洞周边铁离子发出的X射线谱线。

That energy is emitted as photons of visible light.

能量以可见光的光子形式发射。

Making that cement probably emitted about 4,600 metric tons of carbon into the atmosphere.

制造这种水泥可能向大气中排放了大约 4600 公吨的碳。

Best of all, it does not emit harmful carbon dioxide into the atmosphere.

最好的一点是，Kayoola不会向大气释放有危害的氧化碳。

Its echolocation beam is locked onto its prey, but the moth is also emitting ultrasound.

它的回声定位声波已经锁定了它的猎物，但蛾子也在发射超声波。

It is more attractive businesswise simply to emit the CO2.

商业角度来说，排放氧化碳更有吸引力。

Sparks were emitted from small black boxes and red lamps flashed on and off angrily.

小黑盒子里迸出火花，红色灯泡发怒似地忽明忽暗。

Oxygen molecules emit a green or red color. And nytrogen emits pinks, blues and violets.

氧分子发出绿光或红光。氮分子发出粉光，蓝光和紫光。