以下为句子列表：
英文: Abstract: Brief introduction to χ(2) cascading nonlinearities is presented.The enhancement mechanisms for optical Kerr effect and the photorefractive effect as χ(2) cascading process are discussed.Mutual inductance between quadric and cubic nonlinearities
中文: 文摘:介绍了χ(2)串级非线性.讨论了串级光克尔非线性和串级光折变非线性的增强机制，并指出二阶和三阶非线性的相互转化，为光学非线性工程设计提供了可行性.
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英文: To overcome and improve traditional BP &display the advantages of NN and inherited algorithm, the essay has put forward NN quadric training method, applied inherited algorithm to NN weight and got the result from training.
中文: 为克服和改进传统的份，算法的不足，发挥神经网络和遗传算法的优势，提出一种基于遗传算法的神经网络二次训练方法。
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英文: Application of Quadric Spline for CAD of Garment
中文: 二次B样条在服装CAD中的应用
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