unsymmetrical double curve turnout

用法例句

If symmetrical turnout or three-way turnout can be adopted in urban rail transmit,by which the construction investment can be reduced largely.

如能在城轨交通轨道工程设计中使用对称道岔或三开道岔,可达到大幅度节省轨道工程投资之目的。

By analyzing single-way point standard positioning and with considering the problems appeared in construction, the paper raises the counter-measures to mast positioning under special cases, and further illustrates the purpose of point positioning.

通过对单开道岔标准定位的分析,针对施工过程中出现的问题,提出了特殊情况下支柱定位的解决办法,并对道岔定位的目的做了进一步的阐述。