The effect radius of ecological field on the population of Quercus liaotungensis was decided as 15 meters and the ecological interference of Fraxinus rhynchophylla and Lespedeza bicolor population has obvious heterogeneity.
经计算 ,辽东栎种群生态场作用半径为 1 5m ,大叶白蜡 -胡枝子种群间生态干涉具有明显的异质性特征。
Obtains the change rules of the soil temperature with the radial direction,the change rules of the exit water temperature of the buried pipe and the thermal influencing radius in the vertical multi-pipe,which can be reference for the design of the buried depth and distance of the u-vertical buried p.
通过对夏季制冷工况的模拟,其结果与实测值非常吻合,并得到土壤温度沿径向、纵向的变化规律及埋管的热作用半径的变化规律,为U型垂直埋管的埋深及间距设计提供参考。
In urban gas network with multiple pressure ranges, there is an optimal effect radius, for which the annual calculating cost is minimal.
在城市燃气多级管网系统中,存在一个调压室的最佳作用半径,这时管网系统的年计算费用为最小。