Fisherman Ray Turner hand-built the V-shaped stone overflow dam, in the East Branch of the Delaware River in New York.
渔民雷·特纳在纽约德拉瓦河的东支流手工建造了这个 V 字形石头溢流堰,或称鱼梁。
A gable-shaped stone that crowns a buttress.
覆盖扶壁顶部的山墙状的石头。
The central wedge-shaped stone of an arch that locks its parts together.
拱顶石,塞缝石拱的中部楔形石头,使拱的各个部分连在一起。
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