中文名称备用时间 英文名称reserve time，standby time 其他名称备用小时(reserve hours 定义standby hours) "
高中一学年包括40周的上课时间和一两周的备用时间。
The academic year for senior middle school is made up of 40 weeks of instruction, with one to two weeks in reserve.
该模型定义的备用时间可代替后验数据需求次数，在反应堆可靠性数据处理中有一定的实用价值。
The model, which was practicable for reliability data processing in some nuclear reactors, considers failures occurring during standby time and only needs to input "stan…"
如果可以承受更长的停机时间，那么在决定对备用机器的使用时就有更多的选择。令人高兴的是，不管您需要做什么，DB 2都有很多的选项。
If you can afford longer outage times, then you'll get more options with respect to the use of the standby machine.
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