A.2014B.2012C.2015D.2013
A.220B.330C.400D.500
A.分析故障性質(zhì)→故障點粗測→故障點定位B.故障點粗測→分析故障性質(zhì)→故障點定位C.分析故障性質(zhì)→故障點定位→故障點粗測D.故障點定位→故障點粗測→分析故障性質(zhì)