释义 |
tre·pan¹ /trɪˈpæn/ n. | vt. I /trɪˈpæn,ˈtriːpæn/ n. 1. = trephine 2. (重型)凿井机,钻(矿)井机;打眼机 3. 【机】筒形锯
II (-panned; -pan·ning) vt. 1. = trephine 2. 钻削;在…打眼;在…上穿孔;在…的凿孔(或钻孔)四周开同心槽 [<ML trepanum rotary saw < Gr trupanon auger < trupe hole < trupan to bore¹] |