Your body needs a gas called oxygen from the air.

你的身体需要空气中的一种叫氧气的气体。

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Oxygen from the air took the place of the cobalt oxide.

空气中的氧气代替了钴氧化物。

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We, in fact, borrow oxygen or steal oxygen from the air free of charge.

我们事实上免费从空气中,借或者偷氧气。

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We, in fact, borrow oxygen or steal oxygen from the air free of charge.

我们事实上免费从空气中,借或者偷氧气。

麻省理工公开课 - 固态化学导论课程节选

The main goal of the respiratory system is to bring fresh in so that you can extract oxygen from it, and blow used air out so that you can rid of carbon dioxide which is the end product of carbon metabolism inside our bodies.

呼吸系统的主要功能是,吸入新鲜空气,以便获得空气中的氧气,呼出废气,以便排出二氧化碳,二氧化碳是人体内碳代谢的终产物

耶鲁公开课 - 生物医学工程探索课程节选

These devices, which work by combining hydrogen with oxygen from the air to produce electricity, are popular candidates to replace internal-combustion engines in road vehicles.

ECONOMIST: The dawn of micropower

At the cathode, the protons and the electrons react with oxygen from the air to make water which, to the joy of environmentalists, is the only waste product of such a cell.

ECONOMIST: The dawn of micropower

That's why it's called carbon dioxide, or C02 one carbon atom from the gasoline and two oxygen atoms from the air.

NPR: Has the Move to Make Cars Greener Stalled?