Therefore, the methane now emitted from open landfills should instead be burned to produce electricity.

因此，现在从露天垃圾填埋场排放的甲烷应该被用来发电。

youdao

Should the re-incorporation of carbon into plant material happen where the carbon was emitted originally, or could it be ‘exported’ from one country to another?

源地释放的碳能够被另一个地方的植物固定吸收吗，或者说碳可以从一个国家“出口”到另一个国家吗？

youdao

Although new theories state that information from the interior of black holes is encoded in the Hawking radiation emitted from them, this information could quite possibly be scrambled.

虽然新的理论宣称，来自黑洞内部的信息被编码在霍金辐射中并由黑洞释放出来，但这些信息也很可能面目全非了。

youdao

So what we'll do is this problem here, which is let's calculate out what the wavelength of radiation n would be emitted from a hydrogen atom if we start at the n equals 3 level and we go down to the n equals 2 level.

我们来做这个问题,让我们来计算一下,从n等于3到,等于2能级氢原子辐射的波长是多少。

麻省理工公开课 - 化学原理课程节选

You don't need to know those, but just because it's a special case with the hydrogen atom, they do tend to be named -- the most important, of course, tends to be the Balmer series because that's what we can actually see being emitted from the hydrogen atom.

你们不需要记住,但因为这是氢原子的特例,人们想要命名它，最重要的是当然是Balmer系,因为它是我们可以看到的,从氢原子放出来的光谱。

麻省理工公开课 - 化学原理课程节选

But the shift towards synthetic fuel has provoked criticism, because when such fuel is made from coal and then burned in an aircraft engine, more greenhouse gases are emitted overall than would be produced if the aircraft simply burned conventional fuel derived from oil.

ECONOMIST: Monitor

Some people think signals emitted by television and radio stations would be detectable from nearby stars, thus rendering the debate irrelevant.

ECONOMIST: An argument over whether to send messages to aliens

Last September a team led by researchers from the Scripps Institution of Oceanography, in La Jolla, California, looked at whether clouds could be whitened artificially (and thus caused to reflect more sunlight back into space) using particles emitted from a boat.

ECONOMIST: Geoengineering