She may even cross a valley to see how trees will look in a given density.
她甚至可以跨一个山谷，看看树，看看在给定的密度。
2
Steep and antithetic platy structure of rock mass and geomorphology of the longitudinal valley in the dam site area cause wide-range toppling deformation on the cross-strait slope.
对该水电站坝址区陡立反倾板状结构岩体而言，纵向河谷的地形特征，使坝址两岸边坡大范围发育倾倒变形。
3
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.