Deep - sea divers can suffer nitrogen narcosis from breathing air under high pressure.

深海潜水者会因在高压下呼吸而出现氮麻醉.

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Breathing air was forced through ducts filled with copper pot scrubbers.

强行让流动的空气通过用铜填充的导管.

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Standard on Breathing Air Quality for Fire and Emergency Services Respiratory Protection.

消防救生索及配件系列.

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Breathing air fouled and darkened with factory soot.

供呼吸用的空气被工厂的煤灰污染得又脏又黑.

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