the southwest of china 中国西南部
ethnic groups of southwest China 西南民族
southwest region of china 中国西南地区
There are many researches about the two pests in China and it is prolific about Middle and East of China but deficient about the southwest of China.
关于这两种水稻害虫的研究有大量报道,我国的研究主要集在中东部,而西南地区稻飞虱研究相对欠缺。
参考来源 - 褐飞虱和白背飞虱落地后的发生规律及预测预报研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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