spring valley造句

例句与造句

1. Calculating supply amount of karst underground water in spring valley by synthetic permeance coefficieint method is introduced . the question of error in observing all area balanced calculation in fengfeng mine area is expouned
   应用综合渗入系数法进行泉域岩溶地下水补给计算，解决了峰峰矿区用小流域观测全区均衡计算过程中误差较大的问题。
2. It's difficult to find spring valley in a sentence. 用spring valley造句挺难的