现代密码学 Modern Cryptography ; Modern Cryptology
替代密码 Substitution Cipher ; Monoalphabetic Substitution
多表替代密码 polyalphabetic substitution cipher
多字母替代密码 polygram substitution cipher
简单替代密码 simple substitution cipher
同音替代密码 Homophonic Substitution Cipher
多名码替代密码 homophonic substitution cipher
代换密码 Homophonic substitution cipher
代码密度 Code Density
代号、密码 Code
史密森学会档案馆馆长埃菲·卡普萨利斯说：“我们在20世纪70年代中期的时候发现它不见了。”
"We realized in the mid-1970s that it was missing," says Effie Kapsalis, head of the Smithsonian Institution Archives.
史密森国家航空航天博物馆创始人保罗·加伯站在那里，手里拿着打上明显的1940年代初日本零式战斗机标志的风筝。
Paul Garber, founder of the Smithsonian National Air and Space Museum, stands with a kite marked with the distinctive shape of a Japanese Zero fighter in the early 1940s.
通过采用真实生活中的事例演绎类似亚里士多德、康德和约翰密尔等人的哲学理论，桑代尔成功的令这门课程引人入胜。
What makes the class so compelling is the way Sandel uses real-life examples to illustrate the philosophies of the likes of Aristotle, Immanuel Kant and John Stuart Mill.
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