Especially in the rural market, the majority of the geographical dispersion of the population, the need to take a few very good point spread.
尤其是农村市场，地域广大人口分散，就更需要很好的把握几个传播交点。
3
The over-dispersion of the acanthocephalan population in host different body length groups was found, and the degree of the aggregation increases with the increases of mean abundance.