The biolocial population and distribution of benthic macro-invertebrates in Xuzhou region of Jinghang Great Canal have been ascertained bybioassay method.
本研究利用生物监测方法，探明了京杭运河徐州段大型底栖无脊椎动物的生物种群及其分布。
2
In Sparus macrocephalus alimentary canal, the distribution of endocrine cells was studied through immunohistochemistry.
应用免疫组织化学方法研究了黑鲷消化道几种内分泌细胞的分布。
3
Then the concept of canal density is defined. This concept is used to evaluate rationality of canaldistribution.