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为便于广大森保工作者掌握分月扇舟蛾Clostera·anastomosis L.的发生期及提供最佳的防治时间,在1989—1992年我们对其周围的物
In order to facilitate the majority of forest protection workers to grasp the monthly term Clothia anastomosis L. period and to provide the best time to control, in 1989-1992 we around the objects