词汇	and education
释义	and education 发展科技教育
随便看	second-order spectra second order spectrum second-order spectrum second-order spin patterns second-order state variable filter second-order station second-order stationary second order stationary process second-order stationary process second-order statistic second order statistics second-order statistics second-order-statistics second order stereoplotter second order stochastic process second-order stochastic process second order Stokes wave secondorder stream secondorder stress second order stress second-order stress second order structure second-order subdifferentials second-order subprogram second order subroutine