In the Central valley area of southwestern USA, a huge water engineering project provided water for farming in dry valleys, but much of the water use has been poorly managed.
在美国西南部分的中部峡谷地区，一个巨大的水引用工程向干旱的峡谷供应水，但是许多水资源被滥用了。
Dozens of California cities, especially in the San Francisco Bay area, the Central Valley, and the southwestern coast, have created urban growth boundaries.
加利福尼亚州的几十个城市，尤其是在旧金山湾区、中央谷地和西南海岸，都已界定了城市成长边界。
Hua Shan valley also named Hua valley is the central valley of Hua Shan Scenic Area.
华山峪也叫华峪，是华山风景胜区的中心峪谷。
Sichuan Basin may be divided into east Sichuan parallel ridge-and-valley area, low mountain-hill area around the basin, central Sichuan hill area and west Sichuan plain area.
四川盆地可分为川东平行岭谷区、盆周低山丘陵区、川中丘陵区、川西平原区。
Sichuan Basin may be divided into east Sichuan parallel ridge-and-valley area, low mountain-hill area around the basin, central Sichuan hill area and west Sichuan plain area.
四川盆地可分为川东平行岭谷区、盆周低山丘陵区、川中丘陵区、川西平原区。
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