They also devised technologies—permissive action links, go codes, and redundant command-control links—that minimized the chance of accidental or unauthorized launches.
他们还采用各种技术，例如行动授权环节，密码和多保险的指挥控制环节，来减少意外或未经授权发射的可能性。
They also devised technologies—permissive action links, go codes, and redundant command-control links—that minimized the chance of accidental or unauthorized launches.
他们还采用各种技术，例如行动授权环节，密码和多保险的指挥控制环节，来减少意外或未经授权发射的可能性。
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