She took the plug of cotton wool from her ear.
她从耳朵中取出棉毛耳塞来。
Also, do not leave the cotton plug in a medicine container that has been opened, since it may draw moisture into the container.
不要将棉塞留在已经打开过的药瓶内，以避免将潮气吸入瓶内；
The vitrification rate caused by cotton plug wrapped in cheese cloth was the lowest among all seal materials, including polyethylene film, plastic cover and sulfuric paper.
封口材料中聚乙烯膜和塑料瓶盖两个处理玻璃化率相似且玻璃化率高，硫酸纸次之，棉塞的最低。
应用推荐