bn:03724401n
Noun Concept
JA
跳開橋  バスキュール橋  バスキュール橋#種類  天秤ばかり橋  跳ね橋
EN
A bascule bridge is a moveable bridge with a counterweight that continuously balances a span, or leaf, throughout its upward swing to provide clearance for boat traffic. Wikipedia
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