计算采暖期天数是根据多年的平均气象条件计算出来的，供建筑节能设计计算时使用！
Vehicle exhaust emission and fossil fuel combustion during heating period were recognized as the major sources for atmospheric BTEX based on analyzing the characteristic ratio of benzene to toluene (B/T).
对苯与甲苯特征比值(B／T)的分析表明交通尾气排放以及冬季和早春采暖期化石燃料燃烧是北京市大气中BTEX的主要来源。
参考来源 - 北京市苯系物污染水平和变化特征·2,447,543篇论文数据，部分数据来源于NoteExpress
这些污染物的种类和数量都是采暖期高于非采暖期。
The kind of these compounds and concentration in the heating season were higher than i…
链条炉排尾部的挡渣铁最多使用一个采暖期，每年均须更换挡渣铁。
Analyses that the slag iron of chain grate tail use at most one heating term, which must be changed every year.
认为铁岭市的空气污染状况与采暖期和气象条件及环境管理措施等有关。
The results show that air pollution situation of Tieling is related closely to heating period in winter and meteorological condition and environmental management level.
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