ferrules
n. (棍棒顶端等的)金属箍,金属环,套圈( ferrule的名词复数 )
A ferrule is a metal or rubber cap that is fixed onto the end of a stick or post in order to prevent it from splitting or wearing down.
Compression fittings for attaching tubing ( piping ) commonly have ferrules ( also known as olives ) in them.
为附加管 ( 管道 ) 通常有 ( 也称为橄榄在其中 ) 冷压头压缩配件.