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Any of a group of long-chain polymers of glucose with various molecular weights that are used in confections,in lacquers,as food additives,and as plasma volume expanders. 葡聚糖，一組葡萄糖長鏈多聚物，分子量不同，用于糖果劑，或做食品添加劑，也可用作血漿體積膨脹劑。