短語詞組短語digital differential protection relay 型數(shù)字式差動保護繼電器DPR Differential Protection Relay 差動保動繼電器current differential protection relay 電流差動保護computerized differential relay protection 微機差動保護differential relay protection 差動誤動microcomputer differential relay protection 微機差動保護pilot differential relay protection 縱聯(lián)差動保護longitudinal differential relay protection 縱差繼電保護the pilot differential relay protection 縱聯(lián)比較式保護 返回 differential protection relay