1) pavement widening
公路扩幅
2) dual highway
双幅式公路
3) expansion of highway construction
公路扩建
1.
Countermeasures to the subgrade construction in the expansion of highway construction;
公路扩建工程路基施工对策的探讨
6) Expressway Expanding Construction
高速公路扩建
1.
Study on Optimization of Traffic Organization during Expressway Expanding Construction;
高速公路扩建期交通流组织优化研究
补充资料:充扩
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