详细解释:n. 交互, 轮流, 间隔
【计】 交替工作
【医】 交替, 更替, 更迭, 互生(植物)
英语解释：
名词 alternation:
being regularly exchangeablesuccessive change from one thing or state to another and back again例句：
The process of recording everything pertinent to a machine run, including identification of the machine run, recording the alternation switch settings, identification of input and output tapes, copy of manual key-ins, identification of all stops, and a record of the action taken on all stops.有关计算机运行的全部事项记录的过程，包括计算机运行的标识、记录转换开关的置位、输入输出带的标识、人工键入信息的拷贝、所有停止的标识以及所有为停机所采取的动作记录。