two-exponentBNC²³⁶²¹³⁺¹ 例句 The impacts on the security of Xifeihe River left embankment under coal mining are evaluated with elastoplastic model, two-exponent rheological model and probability integral method. 然后利用数值模拟软件中的弹塑性模型和流变模型及概率积分法开展煤层开采对西淝河左大堤安全的影响评价。 cnki