On the base of deficient right-Qi, the pathogenic wind, cold, wet, heat attack the human body, block muscle, channel and joints and cause stagnant movement of Qi and blood.

其发生主要是在正气不足基础上，感受风寒湿热之邪，闭阻于肌肉、经络、关节导致气血运行不畅而成。

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The heat transfer and hydrodynamic calculation results of the waste heat boiler show that water circulation is stagnant when the thermal load is very low.

高温取热炉传热计算和水动力计算结果表明热负荷较低时，水循环容易发生停滞。水循环回路结构复杂容易导致并联管内的流量分配不均匀性较大。

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After about 20 minutes, the stagnant heat blended with fabric dust and other chemicals gets uncomfortable, yet not a single worker throughout the day is seen drinking water, and only a handful wear protective masks.

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