The results show that the buried pipe ventilation system can improve indoor thermal comfort in hot climates.

结果表明，埋管系统通风降温可以改善炎热地区的室内热舒适性。

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ABS automatic plastics electroplating line is composed of frame, tank, pipe, ventilation, conducting system, cathode sweeping and other auxiliary equipments.

ABS全自动塑料电镀生产线主要由机架、镀槽、管路、通风、行车、导电系统、阴极移动及辅助设备组成。

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Negotiators have been talking to the man through a 4in-wide (10cm) ventilation pipe.

BBC: Alabama hostage standoff for five-year-old continues

Authorities have been conferring in a nearby church and communicating with Dykes through a ventilation pipe to the underground bunker.

NPR: Ala. Town Mourns For Bus Driver Amid Standoff

During the six-day standoff, officials talked to Dykes and delivered medication and toys to the boy through a 4in (10cm) ventilation pipe.

BBC: Alabama kidnapper dead and boy saved after police raid