结合四地区凤蝶科蝶类种类分布及自然生态环境，研究和讨论四地区凤蝶科蝶类相似程度及原因。
By analyzing the distrubution of papilionidae and its natural environment, the article discusses the similarity ofPapilionidae distribution and its causes among .
的起源、栽培历史和分布区的自然生态条件、生长特性、栽培模式与品质特点。
Origin, cultivation history, natural conditions of distribution areas, growth characteristics, cultivation mode and nut quality of Juglans sigillata were expatiated.
的起源、栽培历史和分布区的自然生态条件、生长特性、栽培模式与品质特点。
Origin, cultivation history, natural conditions of distribution areas, growth characteristics, cultivation mode and nut quality of Juglans sigillata were expatiated.
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