Conclusion the ct manifestations of emphysema, the characteristics of distribution and multi - type of emphysema coexisting can help differentiate cystic air space diseases.

结论肺气肿的CT表现、分布及多种类型合并存在等特点对空腔性病变的鉴别有帮助。

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Unreasonable distribution of industrial sources, coal as principle energy consumption and its great consumption strength made soot-type air pollution more serious.

太原市不合理的工业污染源分布及以煤为主的能源消费结构和能耗强度大使得以煤烟型污染为特征的大气污染严重。

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It is concluded that by using this type of diffuser, a comfort thermal environment can be obtained in the cold air distribution system with ice storage.

由此可见，在冰蓄冷低温送风系统中，采用该型散流器可获得舒适的室内热环境。

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