English中文EspañolFrançais
three-hinged arch /ˈθɹɛdɪd ˈɹɒd/ n

中文：三铰拱

中文 · 三铰拱Español · arco de tres articulacionesFrançais · arc à trois articulations
Meaning：Arch with three roller joints: one at each end and one at the center.
▶ Start interactive picture-tap lesson

Found in these illustrated scenes（1）

Fixed bridge example

‹ Browse all scenes