... 盾构法shie1d method 浅埋暗挖法shallow undercutting method 定向钻法directiona1 drilling meth0d ...
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shallow undercutting method
浅挖法
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The method of culvert-undercutting with shallow overburden is adopted to construct Beijing Xisihuan underground culvert of South-to-north Transfer Project.
南水北调北京西四环暗涵施工中采用了浅埋暗涵施工法。
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