英语词汇alternation number怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	alternation number
释义	alternation number 简明释义交变周期数网络释义 1 ?交变周期数 ... alternation law 更迭律 alternation number 交变周期数 mode alternation 方式变换, 模式变换... 短语 1 number of alternation 交变次数 2 number of sign alternation 变号数双语例句 1 Examples of quasi-random methods of assignment include alternation, date of birth, and medical record number. 准随机分配方法包括：交替分配，根据出生日期分配及根据病例号分配等。
随便看	differences in regional price levels difference in subjective activity Differences,Just-Noticeable differences of co-ordinates difference of opinion difference space difference species difference spectra difference spectrophotometer difference spectrophotometry difference spectrum difference spiral Differences,Sex differences side-by-side difference stationary difference strategy difference stream difference string difference structure difference synthesis difference table difference, temperature difference temperature difference test difference threshold

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