1. 环钻,环锯：trepanning instrument 圆锯开颅器械 | trephine 环钻,环锯 | trestle 台架,架柱
2. 环钻：trepanning machine 打眼机 | trephine 环钻 | trepibutone 三乙丁酮
3. 有柄的环锯：trepantrephine 用环锯行手术 | trephine 有柄的环锯 | trephining 环钴
4. 环钻 环钴：trephinationandradiography 钻孔造影术 | trephine 环钻 环钴 | trephining 环钴
noun
1. a surgical instrument used to remove sections of bone from the skull
Synonym: trepan
verb
1. operate on with a trephine