second-order subroutine

机械英汉词典... ... second-order stress 二阶应力 second-order subroutine 二级子程序 second-order system 二阶系统 ...

... "second-order perturbation" 二阶扰动" "second-order subroutine" 第二级次常式" "second-order system" 二次系统" ...