艾略特还说，为了翻译外星人所说的，可能仍然需要一本密码本。
Elliott also said that in order to translate what the aliens are actually saying, it may still be necessary to have a code book.
只有有密码本的人才能解译这个电文。
其实我猜它就是个密码本。
没有密码本的情况下去破解密码是很难的。
想要解读一个真正的密码信息，你必须有一个密码本。
To read the message of a real code, you must have a code book.
想要解读一个真正的密码信息，你必须有一个密码本。
With a code book, you might write down words that would stand for other words.
然而，让密码本长时间保密，不被他人知道也是很难得。
However, it is also hard to keep a code book secret for long.
然而，让密码本长时间保密，不被他人知道也是很难得。因此必须频繁更换密码。
However, it is also hard to keep a code book secret for long. So codes must be changed frequently.
但由于DNA密码本身并无变化，莫里斯的团队认为这些基因表达的调整是表观的。
But because the DNA code itself remained unchanged, Morris's team suggest that the changes in gene expression are epigenetic.
本发明的另一个方面是一种通过组合最大功率与最大容量标准来确定最佳密码本加权的手段。
An additional aspect of the invention is a means of determining the best codebook weights by combining the maximum power and maximum capacity criteria.
一个密码用符号来代替单词，短语或者句子。想要解读一个真正的密码信息，你必须有一个密码本。
A code USES symbols to replace words, phrases, or sentences. To read the message of a real code, you must have a code book.
根据诲森堡测不准原理，使用量子密码可以使通信双方不需要事先准备相同的密码本即可绝对保密地通信。
Based on Heisenberg's uncertainty principle, quantum cryptography allows two parties who share no secret information beforehand to communicate in absolute security.
根据诲森堡测不准原理，使用量子密码可以使通信双方不需要事先准备相同的密码本即可绝对保密地通信。
Based on Heisenberg's uncertainty principle, quantum cryptography allows two parties who share no secret information beforehand to communicate in absolute security.
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