飞行员咽鼓管通气阻力测量及耳气压伤预防 关键词: 咽鼓管;通气阻力;飞行员;耳;气压伤 [gap=1413]Key words: Eustachian Tube; Ventilation Resistance; Pilots; Ear; Barotrauma
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文章详细信息 关键词： 通风系统;;优化;;通风阻力;;等积孔 [gap=645]Keywords: ventilation system;optimization;ventilation resistance;equivalent orifice
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... 4 躼 实际死腔 effective dead space 5 躼 通气阻力 ventilation resistance 6 躼 透漏率 penetrating leaking coefficient ...
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Through ex-ample of lowering ventilation resistance in Nanfeng shaft, application process is introduced with graphic method.
通过对南风井井筒的降阻改造实例，介绍了图解法的应用过程。
Based on the "Security Rules for Coal Mine", the ventilation resistance and main ventilator behavior in Xing-long Mine is measured.
前言：根据《煤矿安全规程》规定，对兴隆煤矿进行了通风阻力测定和主通风机装置性能测试。
Retrograde ventilation is used for Wangjiazhai coal mine, both air leakage and ventilation resistance of the main shaft are largish.
王家寨煤矿为中央并列式通风，漏风量较大，主井通风阻力较大。
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