For the situation of washout by flood of trunkhighway, the paper analyzed its cause, proposed the treatment measures to reduce the loss.
针对干线公路水毁情况分析其原因，提出预防和治理的措施，以降低和减少水毁的损失。
2
The national and provincial trunkhighway network has been improved, connecting administrative regions at and above the county level nationwide.
国省干线公路网络不断完善，连接了全国县级及以上行政区。
3
The paper, based on the reconstruction of trunkhighway pavement gravel base with concrete, analyzes the importance of quality control, aiming to be helpful for the control of the same kind.