railway culvert的意思|示意
铁路涵洞
railway culvert相关短语
1、 railway culvert detail 铁路涵洞
2、 railway bridge and culvert 铁路桥涵
3、 railway underpass box culvert 立交铁路箱涵
4、 railway bridge and culvert design 铁路桥涵设计
5、 Existing railway bridge and culvert 既有线桥涵