Since the homogeneous model can approximate the objective function better than the quadratic model, the new algorithm is superior to the classical trust region algorithm.

由于该模型比二次模型更近似目标函数，故新算法优于传统的信赖域算法。

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A new type of laser welding machine is introduced in this paper. New conception and reasonable design were adopted. The machine possesses not only superior function but also high efficiency.

本文介绍的金刚石锯片激光焊机，采用新颖的构思、合理的设计，使机器不但具有优越的性能，而且具有高的生产效率。

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