浅埋洞室
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浅埋暗挖
shallow underground excavation method 浅埋暗挖法
shallow cover underground excavation 浅埋暗挖法
shallow bury and underground excavation 浅埋暗挖
underground excavation under shallow cover 浅埋暗挖技术
It may avoid stopping transportation and polluting city environment to have excavation in the open replaced by shallow-concealed excavation for large scale underground cable tunnel construction.
采用浅埋暗挖法施工地下电缆隧道取代明沟开挖法，可避免阻断交通、污染城市环境。
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