乙炔是简单的窒息物和麻醉剂。

Acetylene is a simple asphyxiant and anesthetic.

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乙炔是简单的窒息物和麻醉剂。实验显示慢性接触高浓度乙炔没有有害影响。

Acetylene is a simple asphyxiant and anesthetic. Experiments have shown there to be no harmful effects from chronic exposure to acetylene at high concentrations.

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尽管氮无毒且很大程度上不活泼，通过取代空气中的氧，使之下降到维持生命所必须的水平以下它可以为简单的窒息物。

Although nitrogen is nontoxic and largely inert, it can act as a simple asphyxiant by displacing the oxygen in air to levels below that required to support life.

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