滚轮: contact roller; trolley whee ...杆: shaft; rod; bar接: come into contact with; come ...电器: electrical equipment接电器: circuit closer凹形接电器: concave collector; trough shaped collector滚柱接电器: roller current collector曳滑接电器: drag slide current collector; trailing current collector滚轮电车接电轮: trolley wheel杆接多触点继电器: bar relay固定式接电器: current with fixed base; with fixed base collector转座式接电器: current with revolving base继电器连接电路: relay link circuit矿用机车接电器: current-collector for mine locomotives滚轮: contact roller; trolley wheel (电车接电轮)触轮杆: trolley pole滑轮杆: roller arm凸轮杆: cam lever杆接头: knock-off joint变速齿轮杆: change gear lever电车触轮杆: trolley pole轮杆控制: wheel column control偏心轮杆: eccentric rod偏心轮杆销: eccentric rod pin手闸凸轮杆: hand brake cam lever