Second law第二定律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 ventricle of cerebrum第二脑室, 侧脑室second order supercavitating二级超汽蚀second order phase transition二级相跃迁second-order moment methocl二阶矩法second-order linear systems二阶线性系统second rank buffer technology二级缓冲区技术Second Middle School in Xinyu新余二中Second order nonlinear optics二阶非线性光学Second Frankish-Moorish War第二次法兰克-摩尔战争(公元734-759)second-order Markov process二阶马尔柯夫过程