secondmentn.暂借；借调secondadj.第二的；次等的；再一个的num.第二n.片刻；秒adv.第二；其次v.支持；赞成；附和；调派second generation contourlet transform第二代轮廓波变换Second Chinese Revolutionary Civil War第二次中国国内革命战争(1927-1937)second language vocabulary acquisition二语词汇习得Second Generation Dual Axis Technology第二代双轴技术Seconds Since Previous Captured Packet相对前一个捕捉包的时间second- order differential equations二阶微分方程Second-derivative absorption spectra二阶导数吸收谱second language acquisition motivation学习动机second-order tracking differentiator二阶跟踪微分器TDSecond-order moment combustion model二阶矩燃烧模型