单词bung hole
un.: 封塞孔；桶侧口
网络: 注入孔；甲板木塞孔；桶侧孔
桶侧口
封塞孔
Reis used an animal membrane stretched over a small cone inserted into a bung hole of a barrel. To the membrane was fixed a platinum wire.
莱斯将一种动物薄膜覆盖在一个锥状物上，薄膜上固定了一根铂丝，再将锥状物插入一个木桶的桶孔。
[ what's that? ] get your finger out of that bung hole!
[那是什么？]把你的手指从炮筒里拿开！