特殊设计的偏置阀瓣结构能够快速从密封表面提升起来，最大限度减小磨损并降低操作力矩。

Specially designed offset disc lifts quickly from sealing surface to minimize wear and reduce operating torque.

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提出了齿轮激光表面强化的偏置技术、变速扫描技术和辅助冷却技术，因而，获得了沿齿廓分布的均匀硬化层。

The three key techniques for laser surface hardening of gear have been proposed in this paper. With using these techniques, an uniform hardened case along the flank of gear has been obtained easily.

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最后，通过对调整和修补后的牙齿模型外表面进行等距偏置，生成一层新的牙齿模型表面，这个表面作为牙套模型的外表面。

Finally, a new layer on the surface of teeth model is generated after offset for the same displacement for the model after adjustment and repaired.

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