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.gov website belongs to an official
government organization in the United States.
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Maps of experimental sites. (a) Sichuan Province in China; and (b) the four sites in Sichuan Province; (c) Ya’an sites (YA); (d) Yibin sites (YB); (e) Dujiangyan sites (DJY). The red points mark the downtown areas, and the green points mark the location of each site.
