A textile machine consisting of a spiked drum revolving inside a chamber fitted internally with spikes, used to open and clean unprocessed cotton or wool.

• 打棉机一种由装刺的鼓组成的纺织机器，鼓在内部装有大钉的密闭空间内转动，用于打开和清理未加工的棉花或羊毛