cascade net层叠网cascaden.瀑布；[电]串联v.瀑布似地落下；（将 ... ）连结；串联Cascade Nonlinear Diffusion Equation Filtering串联式非线性扩散方程滤波cascaded second-order nonlinear interactions级联二阶非线性效应cascaded single-stage distributed amplifiers级联型分布放大器cascade of triple-withdrawal zone-transport refiner级联三重回收熔区传输区域精炼炉