中ちゅう小しょう河か川せん

noun

small and medium-sized rivers

Technical and administrative term used in contexts such as flood control, river management, and environmental planning.

• この計けい画かくは中ちゅう小しょう河か川せんの氾はん濫らんを防ふせぐためのものです。

  This plan is for preventing flooding of small and medium-sized rivers.