There are three major classes of groundwater vulnerability assessment methods: overlay and index methods, methods employing process-based simulation models and statistical methods.
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。
The index system in power emergency system vulnerability assessment was compiled by using comprehensive indexes.
采用脆弱性评估中的综合指标法，编制了评估电力应急体系脆弱性的指标体系。
The index system in power emergency system vulnerability assessment was compiled by using comprehensive indexes.
采用脆弱性评估中的综合指标法，编制了评估电力应急体系脆弱性的指标体系。
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