Agriculture in West China  西部农业

arid area in West China  西部干旱地区

central city in West China  西部中心城市

Countryside in west China  西部农村

Develope in West China  西部开发

Development in West China  西部开发

East and West in China  东西部

Economy development in west China  西部经济开发

energy development in west China  西部能源资源开发

highway in West China  西部公路

land resources in West China  西部国土资源

railway construction in West China  西部铁路建设

railway network in West China  西部铁路网

Resource industries in West China  西部资源产业

aerial survey in railways  铁路航测

China railways  中国铁路

existing railways in mountainous regions  既有山区铁路

flood control in railways  铁路防洪

Key Words: railways in Western countries  西欧铁路