方法：结扎丝线法建立大鼠急性牙髓炎症模型和免疫组织化学技术观察牙髓CGRP - IR神经纤维的变化。
Methods: Rat acute pulpitis model was established by silk thread ligation and the change of CGRP IR nerve fibers was observed with immunohistochemical method.
仿真系统应该能够实现线切割加工工艺效果的预测，加工工艺参数的优化，而且通过训练模型的功能，能适用于不同类型的高速走丝线切割机。
Machining effectiveness prediction and parameters optimization is considered in this software. Moreover it can be used on different wire EDM machine tools through models training module.
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