jumper cables
noun [ plural ] US uk/ˈdʒʌm.pə ˌkeɪ.bəlz/ us/ˈdʒʌm.pɚ ˌkeɪ.bəlz/ (UK jump leads)
（用来与另一汽车中带电电池相连接以启动发动机的）跳线，跨接线
a pair of thick wires for starting the engine of one vehicle with electricity from the battery of another vehicle