Office buildings with recirculated air can get stuffy and stale.
有再循环通风系统的写字楼可能会空气不好。
For sufficient ventilation and passenger comfort a common cold air manifold mixes the pack fresh air with recirculated air.
为达到充分的通风和旅客舒适度，使用一个通用的冷空气总管来掺混空调组件的新鲜空气和再循环空气。
Don't set your car's air conditioner or heater to recirculated air. Selecting the outside air option on your dashboard will reduce the number of pollutants you're circulating inside the car.
不要用汽车空调或加热器去循环空气，将操控仪表板选至外部空气会降低内部循环时产生的污染物。
When the carrier gas is recirculated for reuse, surprisingly air is preferred as the source of such gas, especially for reactive hot DRI.
当载气被循环重新使用时，空气被意外地优选用作这种气源，特别是对于具有反应性的热的DRI。
Service area : recirculated cooling water of central air conditioner, chilled water systems;
服务范围：中央空调的循环冷却水、冷冻水系统；
Service area : recirculated cooling water of central air conditioner, chilled water systems;
服务范围：中央空调的循环冷却水、冷冻水系统；
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