Author define economic region a geographical area with a nodal structure and an economic function.
作者认为经济区域即是具有核心构造和具备某种经济职能的地理区域。
Muskmelons were cultivated in plastic greenhouse in Guangxi region in 1990s, and this modal was good for adjustment of cultivation structure, additionally, it exhibited an exciting economic benefit.
广西地区在上世纪90年代末就利用塑料大棚栽培厚皮甜瓜，改变了当地甜瓜的栽培结构，并取得较好的经济效益。
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