topographical factor的用法和样例：
例句
- Because all topographic factors may affect the results, especially in mountains and hilly regions.
尤其是在重山峻岭和山丘地区搞重力测量，因为所有的地形因素均会影响测量结果。 - Topographic factors such as hypsography and earth curvature are greatly responsible for remote sensingimage distortion.
地形因素，包括地面起伏和地球曲率，是造成航空数字遥感影像变形的主要原因之一。
