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読み方:かせんがく
河川学
potamology
遠方の河川
a river in a distant place
河川の水
river water
河川限定
confined to rivers
河川系.
a river system
川の本流
the main current of a river
川の支流
a river branch
河の支流
a tributary (stream)
川の流れ
the course of the river
内陸河川.
inland rivers
川の水
大きな河川
a wide river
インダス川という河川
a river called the Indus
川の主流
the main course of a river
河川の通行税
in Japan, tax formerly collected from boat travellers on rivers
川のほとり
a riverbank of a river
支流
a tributary stream
川の岸
a riverbank
ナイル川の源流
a headstream of the Nile
利根川の支流
a tributary of the Tone―the Tone and its tributaries
ナイル川の本流
the trunk of the Nile
川の流域.
a river valley
川の対岸
the far bank of the river
ガンジス川流域
the Ganges Valley
川の源
the source of a river
川の在る方面
a direction that is towards a river
ライン川の支流
a tributary of the Rhine
安倍川という河川
a river called {Abe River}
川のそこ
the bottom of a river
利根川の流域
the Tone basin―the area drained by the river Tone