nine track meaning in Chinese

九道

A standard for 1 / 2 " magnetic tape designed for data storage . its nine tracks hold a byte ( eight bits ) plus one parity bit in a row across the tape width - wise
为数据存储而设计的1 / 2 "磁带标准。在磁带横向一排上的9个音轨是1个字节（ 8比特）加上1个奇偶校验位。
The shenzhen rainbow bridge is near to the northern railway station , which has big cut bag to span over twenty - nine tracks . arch bridge structure , which has a widely application these years , is taken considering of the bridge height limitation and the site used in downtown . the girder of the bridge is constructed with composite structure of steel and folding concrete slab
深圳市彩虹大桥地处深圳火车北站，需跨越29股火车轨道，跨径大，又处于市中心，对桥梁的梁高有所限制，经研究分析，采用近年来广泛应用的钢管混凝土拱桥桥型，梁体采用钢- -混凝土叠合板组合梁组合结构。