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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Hence, flexible pipe ventilation technique is developed and tested in the No. 24 tunnel of a water engineering some of the test results are introduced in this paper.

因此，中国铁道建筑总公司组织石家庄铁道学院、铁十五工程局有关科研人员，在“引大入秦”工程24号隧洞开展软管通风技术的研究和试验。本文是该课题的部分测试结果。

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Practical significance of heat pipe used as heat recovery equipment in air conditioning and ventilation system is introduced.

介绍了设置热管热回收装置对空调通风系统节能具有重要的现实意义。

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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