瓦尔丁博士表示，即便是一片白面包，其含水量也超过了30%。
'Even a slice of white bread is more than 30% water,' says Dr. Valtin.
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目的：制备防粘连几丁糖膜及测定其部分性能。
Objective: To prepare chitosan film and to study its hemostatic properties.
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