国内最大直径硬岩掘进机下线 将用于中国第一铁路长隧

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 2095-6290|volume|8|87-87

ISSN: 2095-6290

Source: 中国产经, Vol.volume, Iss.8, 2017-01, pp. : 87-87

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Abstract