threadern.螺纹铣床；螺丝车床threadn.线；思路；螺纹；线索；细丝；帖子vt.穿过；穿线于；遍布vi.滴下成丝状；小心地通过；蜿蜒前进thread galvanometer艾因托文氏电流计thread-guide stud夹线导纱杆thread of discourse话头儿thread forming tool螺纹成型刀具thread guide lappet导纱钩板thread-cutting oi螺纹切削油thread relief angle螺纹后角thread tension gear线张力齿轮threading apparatus穿线器thread - sticking螺纹粘扣