regional structure的用法和樣例：
例句
- The distribution pattern of the karstic groundwater in Zhuozishan area is concluded based on its occurrence and regional structure analysis.
在研究桌子山地區岩溶水賦存條件的基礎上，通過對區域構造條件的分析，總結出該區地下水的分佈規律。 - Though it is roughly recognizable for the outlines of regional structure and volcanic rocks, the images of steep dip strata and boundary of volcanic rock are smeared.
雖然區域構造與火山岩的複合發育區的基本輪廓可被識別，但陡傾角地層的反射成像不清晰，火山岩地層邊界模糊。
