up highway meaning in Chinese

上公共通道

So , to summary and study the mountain tunnels construction and monitoring technology in time , especially have a deeper understanding of the bad situation in the tunnel construction and grasp the successful experience and failure lesson from the tunnels already built up could provide important reference details and decision basis for newly built project , and also it is necessary for building up highway tunnels economically and high qualifiedly
因此，及时总结和研究山岭隧道施工和监控技术，深入探讨隧道施工中各种不良现象产生的原因，掌握已有隧道的成功经验和失败教训，才能为新建的工程提供重要的参考资料和决策依据，对经济地、高质量地建设公路隧道十分必要。