词汇	After disaster
释义	After disaster 灾后
随便看	perturbation learning method perturbation linearization perturbation mapping perturbation matrix perturbationmethod perturbed differential equation perturbed dimension perturbational perturbational molecular orbit perturbational molecular orbital perturbational molecular orbital theory perturbation analysis perturbation and observation perturbation and observation method perturbation approach perturbation approximation perturbation atmosphere model perturbation bound perturbation bounds perturbation calculation perturbation calculus perturbation coefficient perturbation-combined active control technique perturbation compensation perturbation current