[电学] 分瓣电刷，防止集电器上产生电弧 arcing brush: 跳火电刷arcing current: 电弧电流carbon current collectors for tram: 无轨电车滑块split brush: 分瓣电刷; 分裂式电刷critical current of double arcing: 双弧临界电流下载手机词典可随时随地查词查翻译
