采用随机完全区组设计，以体重为区间。

The study was randomized complete block design and differentiated weight by block.

youdao

这三组试验都有样本数少，信赖区间宽的问题。

All had small sample sizes and confidence intervals were wide.

youdao

这三组试验都有样本数少，信赖区间宽的问题。

All had small sample sizes and confidence intervals were wide.

youdao