exchange frequency

• 交换频率

exchange frequency的用法和样例：

例句

1. The results revealed that there was an increase in mean SCE frequency of peripheral lymphocytes after phototherapy, which reversed itself one year after treatment discontinuation.
   我们发现在新生儿淋巴球的姐妹染色质交换频率在照耀治疗后有明显增加的情形，而一年后追踪则无差异。