gray pencil sketch Ceramic Cutaway View ,
Sectional View of Bronze Ware ,
Pencil Sketch Ceramic Figure ,
pencil sketch Sectional View of Bronze Ware ,
（陶器、青铜器），手绘一张器物线描图和一张剖视图。 ,
gray pencil sketchCeramic Cutaway View ,
Line drawing of ceramic utensils ,
Artifact line drawing and a section view ,
