At a given air inlet condition and airflow rate, meanwhile, dryness of air outlet was required, proper heat-transfer area and matching refrigeration system are obtained through calculating.
在一定的进气状态下，为达到要求的出气干度，对给定的空气流量进行了设计计算，以得到合适的传热面积与制冷系统的匹配。
The contribution of acid precipitation regional sources and transfering is determined mainly by air pollution condition and meteorology of that area.
酸性降水中局地来源和传输作用的贡献，因地而异，主要取决于当地的大气污染条件和气象条件。
Repairing and maintenance of common area electricity supply system, lighting, filter of air-condition and ventilation system.
公用配电装置、电源照明、空调滤网及排风装置等常规的维护及维修。
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