电路图中的符号有什么含义?答:矿用铠装控制电缆;MKVV22,MKVV32 2*0.5,3*0.75,4*4,---37*1.5mm铠装控制电缆;KVV22,KVV32,KVVR22 2*0.5,3*0.75,4*4,---37*1.5mm铠装屏蔽控制电缆KVVP-22,RVVP-22,KVVRP-22,KVVP2-22,KVVRP2-222*0.5,3*0.75,4*4,---37*1.5mm铠装阻燃控制电缆;ZR-KVV22,ZR-KVV32,ZR-KVVR222*0.5,3*0.75,...