英语语法分析

The validity of this model is proved by a case study of a typical polder area in Datong lake.

通过大通湖典型圩垸的实例计算，验证了这一模型和解法的有效性和优越性。

Polder explains: "It could be a factory or a coal-fired power plant. We are still looking into it."

波尔德解释道：“这个排放大户可能是个工厂，要不就是个煤电站，我们仍在调查中。”

The project will be built on a polder, a recessed area below sea level where flood waters settle from heavy rains.

该项目将建立在一片堤围泽地之上，那里是一处低于海平面的洼地，暴雨沉积就会洪水泛滥。