关于自然落水与水落管外排水的思考

Thinking about nature falls and drainage with down pipe

对常用的自然落水与水落管外排水方式的优缺点进行了比较,得出自然落水方式优于水落管外排水方式的观点,并指出结合屋面、散水种植,合理运用自然落水的排水方式,以有效利用自然能源,可起到既节能又环保的作用。

The conclusion that nature falls is better than drainage with down pipe in water is obtained,through comparing the excellence and shortcoming of them.Nature falls in water combined with roof and apron planting can use energy in effect.At last,the goal saving energy will come ture.