brown stain的用法和樣例：
例句
- In this paper, the law of inhibiting browning stain of Maillard reaction were studied by experiments of adding sulphite.
本文通過試驗添加不同亞硫酸鹽研究了美拉德褐變抑制的規律。 - The preventing methods and the reasons of the pickled cabbage as chippings packed in plastic bags to turn brown and mildew was introduced in the store.
介紹了袋裝酸菜末在貯藏過程中褐變和霉變的原因及防治方法。
