双语畅销书《艾伦图灵传》第6章:连接两个世界(3)
The decrypts flooded in, at an average rate of 3000 a day, like a newspaper filled with nothing but concise, up-to-date news about the Atlantic operations.
Just as the flow began, in early December, the 'irreplaceable' Winn collapsed from 'total mental and physical exhaustion' and 'what was not of immediate operational importance had to be put on one side for later study and usually, before this could be undertaken ... the next crisis was upon us and the study had to be abandoned,' and so forth.
12月初，这种持续供应刚一开始，德国的绝密情报，反而英美军方造成了信息过剩。不需要立即处理的信息，只能先暂时扔在一边。But somehow the joint system managed to keep going, and in the new year became able once more to divert convoys away from known U-boats.
双方的合作很成功，在新的一年里，护航队总是能够避开U艇。
The result was that on the other side, they could not understand why their success in sinking Allied shipping had suddenly been reduced to the level of September 1941.
德国感到很困惑，他们无法明白，为什么他们击沉记录突然降到了1941年9月的水平。Indeed they were sure that U-boat positions were somehow known to the enemy.
实际上，他们非常肯定，敌人一定通过某种方法，得知了U艇的位置。But the head of the German naval intelligence service at Naval High Command adhered to the opinion that it would be impossible for the enemy to have deciphered the signals.
但是，德国海军指挥部情报部门的领导坚持认为，敌人不可能破译通信。They continued to assume that there was a spy network operating in their bases in occupied France, although nothing could have been further from the truth.
他们始终认为，肯定是法国的某个基地遇到了间谍行动。这跟实际情况相差太远了。There were in fact many other factors involved besides cryptanalysis—the provision of escorts and aircraft patrols, the development of radar and of counter-radar measures, and the fearsome weather of this fourth winter of the war.
这一系列巨大的成功，除了密码分析的功劳，还有很多其它方面的因素——护航飞机的支援，雷达和反雷达技术的进步，以及第四个冬天的恶劣天气。But the crucial change was that Allied authorities once more knew where the U-boats were.
但是，最具决定性的因素，就是盟军又能捕捉U艇的方位了。
