For the case of global-zonal average, the results confirm that geotropic approximation is applicable in higher latitudes and the gradient balance approximation in lower latitudes. 全球纬向平均的简化经向运动方程精度检验结果证明中高纬地区以地转风平衡为主,低纬以该简化关系为主。
The geotropism growth was a response of hypha to gravity and the geotropic sensitive was at the hyphal apex. 试验证明:丛枝菌根真菌菌丝延伸生长部位是菌丝尖端,其生长的向地性是对地心引力的感应,感应的敏感部位也在生长菌丝的尖端。