建筑商信心指数自1985年1月首次公布，去年均值为15。
The gauge, which was first published in January 1985, averaged 15 last year.
用该模型预测长江铜陵段水环境中特征污染因子铜的年均值。
We used this model to forecast average value of Cu in water of Tongling section of Changjiang river.
两个城市的四个监测点OC/ EC年均值均大于2 .0 ，说明两城市城区二次污染比较严重。
The ratio of OC and EC exceeded 2.0 in the four monitor sites of the two cities, this revealed serious secondary pollution in the two cities.
应用推荐