口令: word of command; password失效: lose efficacy; lose effectiv ...间隔: interval; space; spacing; bl ...口令失效时间: password expiration time失效间隔时间: time between failures平均失效间隔时间: mean time between failures(mtbf); mtbf; mean time between failures平均失效间隔实际: mtbf口令失效日期和时间: password expiration date and time有效间隔: significant interval; validity interval调制用效间隔: significant interval of modulation最小有效间隔: minimum significant interval失效口令: expired password请求检测指令失效: request sense command failed失效间工作时间: operating time between failures调制的有效间隔: significant interval of modulation恢复的有效间隔: significant interval of restitution解调的有效间隔: significant interval of restitution有效间隔, 有效时间: significant interval平均失效间工作时间: motbf mean operating time between failure; motbf; mean operating time between failure有效间隔理论持续时间: theoretical duration of a significant interval开始单元指令失败功能失效: start unit command failure failed请求检测指令失效输入不正确: request sense command failed invalid entry口令: 1.(口头命令) word of command; word; command; shibboleth 我们等待你的口令。 we await your command.2.(识别敌我的口头暗号) password; watchword; countersign; shibboleth 口令问答 challenge and reply; 你必须说出口令才能通行。 you must give the word before you can pass. 他不知道口令。 he did not know the watchword. 我们说出口令, 哨兵就把我们放过去了。 we gave the watchword, and the sentinel let us pass失效: 1.(失去效力) lose efficacy; lose effectiveness; cease to be effective 这药已失效了。 the medicine no longer has any effect.2.(无效) (of a treaty, an agreement, etc.) be no longer in force; become invalid 条约的失效 voidance; voidness of treaties; 一张失效的支票 an invalid cheque; 自动失效 automatically cease to be in force; 这张证明已失效。 this certificate is invalid.; 失效保险 fail-safe; 失效检验 failure detection; 失效率 [物理学] failure rate; 失效提单 stale bill of lading; 失效支票 stale check; 失效准则 failure criteria命令失败: shell