第二个是流动的人避免逗留人口空气不流通的地方，环境是良好的空气流通。
The second is the flow of people avoid staying populated places with poor ventilation, environment to be good air circulation.
这时候葡萄藤下的空气不流通，像桑拿房一样，唯有葡萄叶下能提供一点阴凉。
The air underneath them is stagnant, as in a sauna, but their foliage is the only available shade.
检测到这种长距离行走后（不同于从办公位置到会议室的短距离行走），计算机将进入关闭程序以避免过热，因为空气在背包中不流通。
After this long walk is detected (as opposed to a short walk between cube and conference), the machine will enter shutdown to prevent overheating while the airflow is confined in the carrying case.
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