biological character index

• 生物学指标

biological character index的用法和样例：

例句

1. The results showed that the water can ivduce ivcrease rate of vicia faba root tips micronucleus in wost montus and that provided biology index to assess water quaulity.
   结果表明，多数月份该水能诱导蚕豆很尖做校率的明显增高，对综合评价水质提供生物学指标。