Pure air is colourless and odourless.

纯空气是无色无臭的.

《现代汉英综合大词典》

Applicable medium can be pure air or noncorrosive gases.

适用介质为纯净空气和非腐蚀性气体.

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Leave the door open, we need some pure air in the room.

让门敞着, 我们屋子里需要点新鲜空气.

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He made him live in the bright sunlight and the pure air.

他让它生活在明亮的阳光下和洁净的空气中.

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Lily was there, looking at me, with a pure air of innocence. I couldn't say anything!

丽丽在那儿看着我, 满脸的无辜. 我什么都没法儿说!

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One should not go into churches if one wants to breathe pure air.

想呼吸纯洁的空气的人,就不应进入教堂里去.

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However, selecting high pure air as compress medium in moderate viability of cell.

当选择高纯空气为加压介质,控制合适的条件,微生物活细胞率不会损失.

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