The fast restoration of optical multicast trees is realized through this part restoration, which focuses on failed node or link.

通过这种集中于故障链路或节点的局部恢复，组播树的快速恢复得以实现。

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Through this part of the experiment, students can grasp the basic experimental techniques and research methods of bacteria.

通过这部分实验，学生可掌握有关细菌的基本实验技术及研究方法。

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Through this part of the experiment, students can grasp the basic experimental techniques and research methods of bacteria.

通过这部分实验，学生可掌握有关细菌的基本实验技术及研究方法。

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