cocoonn.茧;茧状物v.包围;包裹
cocoon shells出壳茧
cocoon packing被覆包装
Cocoon sericin茧层丝胶
cocoon storage贮茧
Cocoon boiling煮茧
cocoon breaker破茧器
Cocoon for egg种茧
cocoon quality茧质
cocoon process喷覆塑料膜法
cocoon cooking煮茧