Small catchment are basic management units in the flash flood disaster control planning (FFDCP) in China.

在进行全国山洪灾害防治规划中，小流域是基本工作单元。

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Tragically, the heavily traveled tourist route became the site of the worst natural disaster in Colorado's history during a catastrophic flash flood in July 1976.

不幸的是，在1976年7月的一场特大洪水中，这条游人如织的道路上发生了科罗拉多州历史上最惨痛的自然灾害。

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