shield tunneling technology
shield tunneling technology
盾构隧道技术
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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At present, shallow shield tunneling technology has been very mature, but very few specific study was conducted on deep tunnel shield tunneling technology.
目前浅埋盾构隧道技术己相当成熟，深埋隧洞盾构技术的专项研究很少。
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