Activated charcoal is charcoal that has been treated with oxygen to open up millions of tiny pores between the carbon atoms. According to Encyclopedia britannica.

活性炭是一种经氧气处理的炭，在其碳原子间形成了数百万的孔洞。

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The move could open loopholes for countries to meet targets without genuine carbon cuts, they said.

他们声称，此举会为那些不用真正削减碳排放就能达标的国家打开漏洞。

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Idling a car in a garage, even with the door open, is dangerous and exposes the driver to carbon monoxide and other noxious gases.

在车库里空转一辆车，即使车库门开着，也很危险，可让司机受到一氧化碳和其他有毒气体威胁。

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This blue chain here goes from 5' carbon all along the chain and there's a 3' carbon left open at the bottom.

这条蓝色的链,从5'碳开始一直向下延伸,以3'碳做为链的末端

耶鲁公开课 - 生物医学工程探索课程节选

In essence, Quasam can be thought of as a carbon nanotube that has been sliced open and laid flat.

ECONOMIST: MONITOR

By 2014, this rural district will be providing 236% of its own energy needs from renewables and hopes to generate significant revenue by exporting excess carbon-free power to the open market.

FORBES: All Renewables, All The Time

While the residents of Samso can take advantage of their island's blustery weather, open spaces and low-population density to be carbon neutral, the success of wind energy on a global scale may come down to simple economics.

CNN: Striking a blow for wind power