短语词组短语water -soluble low molecular chitosan 低聚水溶性壳聚糖the water -soluble chitosan 水溶性低聚壳聚糖Low -molecular water-soluble chitosan 低聚水溶性壳聚糖Preparation of water -soluble chitosan 完全水溶性壳聚糖的制备工艺 返回 water-soluble chitosan