In these attacks, if the cryptanalyst knows the file type, then he can use knowledge of header formats to guess at the key stream used to encode the file.

在这些袭击中，如果知道密码分析的文件类型，那么他可以使用头格式的知识来猜测用于编码文件的密钥流。

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A little stream of Knowledge trickled slowly through a deep worn gully.

一条知识小溪从深壑幽谷中缓缓流过。

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Then, grounded on analyzed basic knowledge of neural network and the stream driver oil recovery, the thesis proposes the dryness measurement project based on neural network.

其次，在对汽驱工艺以及神经网络相关知识研究的基础上，提出了神经网络干度测量系统的设计方案。

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Jean Ellis, of Eagle Harbor, Michigan, a former teacher who is also a descendant of Cornish immigrants, has researched Cornish migration and said from the late 1800s there was a "stream of young Cornishmen carrying unique skills and knowledge to every mining camp in North America".

BBC: Cornwall