The dried silkworm feces is presented a small columned granule of massiness and uniformity which is black or blackish green.
干燥的蚕沙呈小圆柱型颗粒，坚实，均匀，色黑或墨绿。
The dried silkworm feces is presented a small columned granule of massiness and uniformity which is black or blackish green.
干燥的蚕沙呈小圆柱型颗粒，坚实，均匀，色黑或墨绿。
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