71．自动站间闭塞正常办理项目有哪些？
["71\uff0e1.\u529e\u7406\u53d1\u8f66\uff1a2\u540c\u610f\u53d1\u8f66\uff1a3\u5217\u8f66\u51fa\u53d1\uff1a4\uff0e\u5217\u8f66\u5728\u533a\u95f4\u8fd0\u884c\uff1a5\u5217\u8f66\u5230\u8fbe\uff1a"]
71．自动站间闭塞正常办理项目有哪些？
["71\uff0e1.\u529e\u7406\u53d1\u8f66\uff1a2\u540c\u610f\u53d1\u8f66\uff1a3\u5217\u8f66\u51fa\u53d1\uff1a4\uff0e\u5217\u8f66\u5728\u533a\u95f4\u8fd0\u884c\uff1a5\u5217\u8f66\u5230\u8fbe\uff1a"]