fretwork
n. 回紋飾,線條與空間圖案,回紋飾工序; 透雕細工
Fretwork is wood or metal that has been decorated by cutting bits of it out to make a pattern.
1. framework consisting of an ornamental design made of strips of wood or metal
The architect would often just write something like "beautiful fretwork" on the drawing.
建築師通常只會在圖上寫著“美麗的浮凸雕工”之類的說明。