Rushing on the mountain risks slipping, not acclimating to thinning air, exhaustion and possibly death.
如果在爬山的过程中匆匆忙忙，那么就要冒着滑落山坡，无法适应稀薄空气，身体筋疲力竭的风险，有时甚至是死亡。
Gives the main design indices, and presents air distribution, cold and heat sources, air treatment and exhaustion, etc.
给出了主要设计指标，介绍了所采用的气流组织形式、空调冷热源方式、空气处理方式、排风等情况。
The principle of the design of the duct system for the exhaustion of lacol air and a method of determining calculated static pressure and calculating residuary static pressure are introduced.
介绍了局部排风管道系统的设计原理以及计算静压和剩余静压的计算方法 ，最后给出了根据设计原理求解管道直径的方法和工程实例。
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