对Cisco产品有一定认识，熟悉Cisco 2、3层交换机及路由器的配置及操作。

Cisco products to have some knowledge, familiar with the Cisco 2, 3 layer switches and routers configuration and operation.

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论文作者长期从事律师实务工作，对实践中建设工程施工合同引起的纠纷的复杂性有一定认识。

The author knows something about the complexity of the construction contract disputes in construction project in practice because the writer has been a lawyer for a long time.

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学生通过本课程的学习，能够了解PKI的发展趋势，并对其关键技术及相关知识有一定认识和掌握。

After the course study, students can know the development trends of PKI, and understand the key technologies and related knowledge.

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N 2 So any chemist should be able to just look at n 2 and know that it's a triple bond, but that's not something that we've learned how did to do yet, so let's go ahead and start a new topic that's going to allow us to have some sort of sense of what the valence electron configuration, which includes whether something's a single or double or a triple bond can be figured out for any given molecule.

任何一个化学家都应该能够仅仅通过看到2,就知道它有一个三键,但是我们还没学习如何做到这点，因此下面我们就开始进入一个新的主题,它将使我们能够有一定的认识,对于价电子的排布情况，包括可以对任何一个给定分子中的键是单键双键,还是三键作出判断。

麻省理工公开课 - 化学原理课程节选