根据复杂山区地形的特点，以箱模式为基础，引入地形修正系数，建立梯形模型。
Echelon model was built based on the box model and imported modified terrain coefficient, according to the characteristic of mountainous area.
本文采纳VALLEY模式的横向扩散假设，但改变其地形修正方案，构成一个新的山区扩散模式并应用于山区城市渡口市。
A new dispersion model is developed by adoption of assumption for cross-wind dispersion in VALLEY model, but the treatment of terrain influence is changed.
修正了动态地形的广告牌不取消订阅区业主合并时，造成一些遥远的广告错误地关掉。
Fixed dynamic Terrain billboards not unsubscribing from zone owner when pooled, causing some distant billboards to turn off incorrectly.
应用推荐