空气更新率 air change rate ; air renewal rate
告别雾霾空气更清新 say goodbye to smog and make the air fresher
哪里的空气更加新鲜 Where the air is clearer
空气更新
Air renewal
以上为机器翻译结果，长、整句建议使用 人工翻译 。
医生建议我母亲住在空气更新鲜的地方。
The doctor advised my mother to live where the air is fresher.
youdao
这样的系统能持续从室外引入新鲜空气更新室内空气，并且用排出的废气的热量加热引入的空气。
Such a system constantly refreshes your house with fresh air from outdoors but cleverly heats the incoming air with the warm, stale air that's being vented out.
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