variable radius arch dam造句

例句与造句

1. The dam is a 635-foot ( 194 m ) high concrete variable radius arch dam.
2. It was created in 1939 when the "'North Fork Dam "', a tall variable radius arch dam, was completed by the Army Corps of Engineers for the purpose of containing gold mining debris washing downriver.
3. It's difficult to find variable radius arch dam in a sentence. 用variable radius arch dam造句挺难的