地下水脆弱性评价方法主要有三类：迭置指数法，过程数学模拟法和统计方法。

There are three major classes of groundwater vulnerability assessment methods: overlay and index methods, methods employing process-based simulation models and statistical methods.

youdao

地下水脆弱性评价方法主要有三类：迭置指数法，过程数学模拟法和统计方法。

There are three major classes of groundwater vulnerability assessment methods: overlay and index methods, methods employing process-based simulation models and statistical methods.

youdao