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1981—83年我们对日本松干蚧(Mat-scoccus matsumurae Kuwana)的传播扩散与自然风力的相关性进行了测试,现将结果报道如下。
In 1981-83, we tested the correlation between the spread of Mat-scoccus matsumurae Kuwana and the natural wind in Japan. The results are reported below.