雙語暢銷書《艾倫圖靈傳》第7章:運轉起來(21)
Gambier-Parry had also acquired the responsibility for other aspects of secret service work.
These included providing the transmitters for the black broadcasting organisation, which began its 'Soldatensender Calais' broadcasts on 24 October 1943.
比如他從1943年10月24日開始，爲一個假冒的德國軍事廣播站維護髮射設備。(The studios where journalists and German exiles concocted their ingenious falsities were at Simpson, another Buckinghamshire village.)
（這個廣播站位於白金漢郡的辛普森村，記者和德國叛逃者們在那裏編造一些巧妙的謊言。）
SCU3 had further taken under its wing the manufacture of the cryptographic system Rockex, which was to be used for top-grade British telegraph signals.
後來，第3特別通信組的工作還包括了製造供英國最高領導使用的洛克凱斯注密碼機，Such traffic now aMounted to a million words a day to America alone—pre-eminently, of course, carrying Bletchley's productions.
該級別的通信量目前已經達到了僅與美國之間就有100萬個詞，當然，這裏也布萊切利的功勞。The Rockex represented a technical improvement to the Vernam one-time teleprinter cipher system.
洛克凱斯機代表了維爾南一次性電傳打字密碼系統的最新進展。One problem with the Vernam principle was that the cipher-text, regarded as a teleprinter input in the Baudot code, was bound to include many occurrences of the operational or 'stunt' symbols, those which produced not letters but 'line feed', 'carriage return' and so forth.
維爾南原理有一個問題。因爲電傳打字機是用博多碼作爲輸入形式的，這其中包含一些非字母符號，比如換行符、回車符等等，For this reason, the cipher-text could not be handed over to a commercial telegraph company for transmission in Morse, as was often desirable.
所以無法直接由商用電報公司通過摩爾斯碼進行發送。It was Professor Bayly, the Canadian engineer at Stephenson's organisation in New York, who had devised a method of suppressing the unwanted characters and replacing them in such a way that the resulting cipher-text could be printed neatly on a page.
在紐約，史蒂芬遜的組織中有位加拿大工程師，貝利教授，他發明了一種方法，可以避免這些字符，並使密文工整地印在紙上。This required the development of electronics which could automatically 'recognise' the unwanted telegraph symbols.
這需要依靠新型的電子技術，自動識別出不需要的符號，The problem involved logical circuits such as appeared in the Colossus, albeit on a much more modest scale, using electronic switching for Boolean operations applied to the holes of telegraph tape.
這就涉及到類似巨人機的邏輯電路，但是規模很小，通過電子開關執行布爾操作，然後輸出爲打孔紙帶。
