采取典型抽样的方法对沈阳市行道树进行了全面的群落调查。
Systematic community investigation into street trees in Shenyang was carried out using typical sampling method.
通过典型抽样调查，查明甘肃林区主要建群树种橡树的籽壳碗叶的产量；
Through the typical sample survey, I have ascertained the output of bow leaf of oak tree seed.
本文主要采用典型抽样法，选取南宁市14座具有代表性的城市立交桥作为重点研究对象。
This paper USES the typical sampling method, selection of Nanning city block 14 has the representative city overpass bridge as the research object.
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