It is possible that tubes made from animal bones were used for spraying because hollow bones, some stained with pigment, have been found nearby.
有可能是用动物骨头制成的管子来喷洒，因为在附近发现了空心骨头，有些骨头上沾有颜料。
Catalysts for chemical industry and other industries, fertilizer, animal feed, pigment, cosmetics, grinding flour, all kinds of washing chemicals and other particles.
化学工业和其它工业的催化剂、化肥、饲料、颜料、化妆品，磨面粉各种洗涤化学药品等颗粒。
Using pure black rice pigment as material, the author has made an animal nutritional test.
以纯化的黑米色素为原料，进行动物营养实验。
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