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根据全国气候趋势预报。今年夏季我国大部分地区气温可能偏高,有利于一些病虫害的发生,全国森林病虫害发生面
According to the national climate trend forecast. The temperature in most parts of China this summer may be high, which is conducive to the occurrence of some pests and diseases, and the occurrence of the national forest pests and diseases