Figure A. 2 shows height contours for England and Wales, and demonstrates the size of the areas of concern.

图a .2是英格兰和威尔士的海拔高度线，并标识出地区的危险等级。

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Figure A. 2 shows height contours for England and Wales, and demonstrates the size of the areas of concern.

图a .2是英格兰和威尔士的海拔高度线，并标识出地区的危险等级。

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