本文提出一个仅含四个参数的数学模型来模拟一个流域或泄区的地面水和地下水的运动及水量平衡情势。

This paper presents a mathematical model which involves only four parameters to simulate the water movement and balance of surface and groundwater in a basin or an irrigation area.

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它容许创立者划定一个种的根本情势：要领名、参数列表以及返归值范例，但不划定法子宾体。

It allows the creator to establish the form for a class: method names, argument lists, and return types, Nike Hyperdunk Shoes, but no method bodies.

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参数化办法的一个局限：它假设分布会有一个具体的函数情势，但这个函数情势可能与实际景象不符。

One limitation of the parametric approach: It assumes a specific functional form for the distribution, which may turn out to be inappropriate for a particular application.

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