> 在他 1974 年出版的《The Ultra Secret》一书中，空军上校 F. W. Winterbotham 声称英国政府通过 Ultra 提前获得了有关袭击的预警：即截获的通过 Enigma 密码机加密并破译的德国无线电讯息……
> In his 1974 book The Ultra Secret, Group Captain F. W. Winterbotham asserted that the British government had advance warning of the attack from Ultra: intercepted German radio messages encrypted with the Enigma cipher machine and decoded…
“在他 1974 年出版的《The Ultra Secret》一书中，空军上校 F. W. Winterbotham 声称英国政府通过 Ultra 提前获得了有关袭击的预警；即截获的通过 Enigma 密码机加密并破译的德国无线电讯息……
"In his 1974 book The Ultra Secret, Group Captain F. W. Winterbotham asserted that the British government had advance warning of the attack from Ultra; intercepted German radio messages encrypted with the Enigma cipher machine and decoded…
F.W. Winterbotham 写的《The Ultra Secret》
The Ultra Secret by F.W. Winterbotham
> 在他 1974 年出版的《The Ultra Secret》一书中，空军上校 F. W. Winterbotham 声称英国政府通过 Ultra 提前获得了有关袭击的预警：即截获的通过 Enigma 密码机加密并破译的德国无线电讯息……
> In his 1974 book The Ultra Secret, Group Captain F. W. Winterbotham asserted that the British government had advance warning of the attack from Ultra: intercepted German radio messages encrypted with the Enigma cipher machine and decoded…
“在他 1974 年出版的《The Ultra Secret》一书中，空军上校 F. W. Winterbotham 声称英国政府通过 Ultra 提前获得了有关袭击的预警；即截获的通过 Enigma 密码机加密并破译的德国无线电讯息……
"In his 1974 book The Ultra Secret, Group Captain F. W. Winterbotham asserted that the British government had advance warning of the attack from Ultra; intercepted German radio messages encrypted with the Enigma cipher machine and decoded…