单词	痕（迹）量
释义	同极微量--痕（迹）量
随便看	perturbation--factor perturbation-free wavelength perturbation, geometrical perturbation-- geometrical perturbation learning perturbation mapping perturbation matrix perturbation method perturbation motion perturbation of spectrum perturbation of the heavenly bodies perturbation of the vertical perturbation, orbit perturbation-- orbit perturbation or mind, perturbation parameter perturbation potential perturbation produced by foils perturbation quantity perturbation radiation perturbations perturbation sample perturbation, shell perturbation solution perturbation technique