正线 meaning in English
a-wire
main line
positive line
positive wire
Examples
- Question 9 : can columns be erected between the main line and arrival and departure line
铁路正线与到发线之间能否立柱？ - Clearing of main lines
开通正线 - Data data positive
正线自诊 - During the whole process of construction , the operational safty and rapacity of track must be guaranteed
改建施工期内不影响正线运营安全，也不降低通过能力。 - Length of railways in operation ： refers to the total length of the trunk line under passenger and freight transportation
铁路营业里程：又称营业长度，指办理客货运输业务的铁路正线总长度。