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1982年我们在神农架地区按正交设计法对神农架地区华山松大小蠹发生与森林环境之间的关系进行了调查,并作了初步分析.现将结果报导于下:
In 1982, we conducted an investigation into the relationship between the occurrence of forest beetles and the forest environment in Shennongjia area by orthogonal design in Shennongjia area and made a preliminary analysis.The results are reported as follows: