circuitern.巡回者circuitn.巡回；线路；环形；电路；回路v.巡回；绕 ... 环形circuit requirement table电路需求表circuit protection device电路保护装置circuit board fabrication电路板制造circuit-released signal电路释放信号Circuit Concentration Bay电路集中底板Circuit-level synthesis电路级综合circuit experiment system电路原理实验系统circuit description table电路描述表circuit-closing contact闭路接点Circuit Package Schematic示意性回路包