Key management and key synchronization are two important problem for realizing an one-time pad system.
密钥管理和密码同步是一次一密系统应用于实际的两个关键难题。
A complete locomotive brake pad also should contain test and control system.
完整机车闸片性能试验还应包括测试与控制系统。
A complete locomotive brake pad also should contain test and control system.
完整机车闸片性能试验还应包括测试与控制系统。
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