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 Polish-Swedish War for Livonia波瑞第二次利沃尼亚争夺战(1617-1629)Second harmonics antireflection coating倍频增透膜second order pseudo-convexity ruction二阶伪凸second order-differential coefficient二阶导函数second-phase project of Hengling WWTP科学证据second-performance learning algorithm二次型性能指标学习算法second-order nonlinear optical effect二阶非线性光学效应Second are those leisure vacationers.其次是那些休闲度假者。Second and Fourth Independent Regiments独立二团四团Second- order derivative spectrometry二阶导数光谱法