About Wang Qingjiang
About 重慶工商職業学院,重慶,401520
About Wang Yue
About 重慶工商職業学院,重慶,401520
About Shanxi Jianzhu
About road
About construction method
About mountainous region
About geology(geological feature)
About mountain
About large diameter
About tunnelling work
About economic effect
About 長距離
About Tunneling work
About 山岳
About 長距離
About 大口径
About 地質
About トップ
About パイプ