山区路堤  embankment in mountainous areas

山区路基  mountainous district subgrade

泰山山区  Taishan Mountain area

天山山区  tianshan mountains; Tianshan mountainous area; Tianshan mountain areas; tianshan mountainous region; tianshan mountainous

燕山山区  Yanshan mountain area; Yanshan mountainous region

中天山山区  mid-tianshan mountains

街区路网  street network

道路网路设计  Network design problem

公路路网  highway network

公路网路面  Pavements in highway network

路网网格化  traffic network grid

铁路路网  railway net

铁路路网层次  railway network level

铁路路网地理信息系统  gis

铁路路网系统  Railway network

网路网络  Network

阿尔卑斯山区  Alps mountain

阿尔泰山区  altai mountains

阿尔泰山山前  Piedmont of Altay mountain