thimble

extraction thimble 浸出用濾紙筒 ; 抽提套管 ; 萃取套筒 ; 剛鋁石萃取套筒

union thimble [機] 活接頭套管 ; 雙套環 ; 互套心環 ; 互套心環雙套管

paper thimble 紙殼筒 ; 詳細翻譯 ^[1] 

柯林斯英漢雙解大詞典

thimble /ˈθɪmbəl/ ( thimbles )

1.N-COUNT A thimble is a small metal or plastic object which you use to protect your finger when you are sewing. 頂針; 針箍 ^[1]