双语畅销书《艾伦图灵传》第5章:解谜接力赛(39)
Yet no serious analyst would be daunted by this frightening number.
Large numbers would not in themselves guarantee immunity from attack.
巨大的数字本身，并不能保证自己不受攻击。Anyone who had solved a puzzle-page cryptogram had succeeded in-eliminating all but one of the 403,291,461,126,605,635,584,000,000 different alphabetic substitutions.
尤其是对那位在普林斯顿玩寻宝游戏的人来说，他曾经从403, 291, 461, 126, 605, 635, 584, 000, 000注种可能的替换关系中找出了正确答案。
It could be done because such facts as that E was common, AO rare, and so forth, would each serve to eliminate vast numbers of possibilities at once.
这并非毫无头绪，因为E是很常用的，而AO是很少见的，通过类似这样的线索，就可以将大量的可能排除掉。It can be seen that the sheer number of plugboards is not in itself the problem, by considering an entirely hypothetical machine, in which a plugboard swapping is applied only before encipherment by a basic Enigma.
可以看到，假设有一台谜机，只在输入转盘编码之前使用一次配线板，那么配线板引起问题就不难解决。Suppose that for such a machine, it is known for certain that the cipher-text FHOPQBZ is the encipherment of GENERAL.
我们假设这台机器会把GENERAL编码为FHOPQBZ。Once again, it would be possible to feed the letters FHOPQBZ into seven consecutive Enigmas, and examine the output.
同样地，我们可以把FHOPQBZ输入七台相连的谜机，并检查它的输出。But this time, one could not expect the letters GENERAL to emerge, for an unknown plugboard swapping would have been applied to those letters.
但是这一次，由于引入了一个未知的配线板，所以不能指望它会输出GENERAL。
