Glen Canyon dam, which impounds the waters of the Colorado river, was opened for several days starting on March 4th in order to replenish the river's sediment levels.
库存科罗拉多河水的格伦峡谷大坝自3月4日已开闸数天，以填充河道的泥沙高度。
Glen Canyon dam, which impounds the waters of the Colorado river, was opened for several days starting on March 4th in order to replenish the river's sediment levels.
库存科罗拉多河水的格伦峡谷大坝自3月4日已开闸数天，以填充河道的泥沙高度。
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