shellac bleached
虫胶漂白
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The bleached natural shellac product with low chlorine content was prepared by means of catalytic hydrogenation of the bleached shellac in the presence of Ni-Fe binary-metal catalyst and hydrogen.
制备和表征了在食品及制药业中广泛使用的天然低氯漂白紫胶。
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