The building is topped by a ventilated roof with a metal sheet covering.
建筑物上的可通风屋顶是由金属片覆盖的。
A sheet of paper or mylar covering the plane table is annotated during map construction.
用一张纸或聚酯薄膜霞盖在平板仪上，可在制图时作诠释。
A sheet of paper or mylar covering the plane table is annotated during map construction.
用一张纸或聚酯薄膜霞盖在平板仪上，可在制图时作诠释。
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