雙語暢銷書《艾倫圖靈傳》第5章:解謎接力賽(141)
What had happened was not only a change in the system for using the Engima machine.
It was a change in the machine itself.
而且謎機機器本身也改變了，It had been modified in such a way that it now possessed a space for a fourth rotor.
它現在使用4個轉盤了。
Hitherto, the navAl Enigma settings had continued to involve a choice of three rotors out of eight, for which there were 336 possibilities.
之前海軍謎機是從8個轉盤中選擇3個，共有336種不同的轉盤組合。Had the machine been modified to allow a free choice of four rotors out of nine, the figure would have gone up to 3024 (a ninefold increase) and the setting of the new rotor would have introduced a further twenty-six-fold increase on top of that.
假如現在改進爲9個轉盤中選擇4個，於是組合數增加到3024，增加到9倍，另外隨之而來的還有盤位設定數增加到26倍。But this was not done. There was indeed a new ninth rotor, but it had to stay in its place.
但是德國沒有這樣做，第9個轉盤確實增加了，但它卻是固定的，It was only the old machine, but with a new rotor attached to the end, capable of twenty-six different settings.
機器還是老機器，增加的只是26個盤位設定，It was equivalent to having twenty-six different reflector wirings.
相當於有26種不同的反饋器。Accordingly, the problem had become not 234 times worse, but only twenty-six times worse.
還好，問題還沒糟糕到234倍，只糟糕到了26倍。It was a half-hearted measure, like the encoding of the map references, and was undertaken for the same misguided reason: the internal protection of the U-boat messages.
這也是一項虛張聲勢的措施，就像改變地圖座標一樣，也是爲了同樣的理由，即防止潛艇信息從內部泄漏出去，It was not that the Germans feared British cryptanalysis.
並不是爲了防範英國密碼人員。But even if half-hearted, it was a change that pushed Hut 8 off the knife-edge and into almost total blindness.
但即便是虛張聲勢，也是進行了改變，而且這項改變幾乎導致8號營房完全失明。It was already a fluke that the numbers worked out at all, allowing Bombes that worked in hours rather than weeks.
能計算出潛艇數量，已經是很僥倖了。Already the naval Enigma had strained every nerve in the process of achieving decryption in the day or two that was necessary for it to be of convoy-diverting use.
在此之前，海軍謎機繃緊神經，才能在一兩天內破譯護航指揮所需要的信息，Now the twenty-six-fold increase turned every hour into a day, or would require twenty-six Bombes for every one that they had used in 1941, unless ingenuity found another way.
現在複雜度增長了26倍，相當於之前每個小時的工作量現在需要一整天，或者用26臺炸彈機才能相當於1941年的一臺。除非他們找到新的辦法。
