wooden comb

基本解释

From time to time with a wooden comb, to achieve the effect of head massage to help relieve brain fatigue, vigor.
不时与一木梳时间，以达到头部按摩的效果，以帮助缓解大脑疲劳，活力。
fzuetc.com
My advice is to not wash the wooden comb in water. It will change its shape when it dries, and your harmonica will not work as well.
我建议不要在氺里面洗琴格；不然，琴格变干后就会变形，这样口琴就会出问题。
www.kouqin.com.cn
I like wooden comb harmonicas. However some wooden combs change shape when the temperature changes.
我也喜欢木格口琴，不过一些琴格会随温度变化形状。
www.kouqin.com.cn