90.简答发车站按下闭塞按钮BSA时,正电继电器ZDJ的衔铁不动作,怎么办?

90.简答发车站按下闭塞按钮BSA时,正电继电器ZDJ的衔铁不动作,怎么办?

["\u7b54\uff1a\u7535\u6e90\u7aef\u7535\u538b\u65e0\u6709\uff0c\u6216\u7535\u6e90\u7aef\u7535\u538b\u4e0d\u8db3\uff0c\u6216\u95ed\u585e\u6309\u94aeBSA\u7b2c\u4e00\u7ec4\u63a5\u70b9\u4e0d\u826f\uff0c\u6216\u7ee7\u7535\u5668\u63a5\u70b9\u70e7\u9ed1 \u4e86\uff0c\u5e94\u6e05\u626b\u6309\u94ae\u63a5\u70b9\u6216\u66f4\u6362\u7ee7\u7535\u5668\u3002"]