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China's continue high-quality development of TBM

    Chu Yang
    By Chu Yang Replies (1)

    China's economy stable acceleration in high-quality development.

    On October 15, "Qiyue" tunnel boring machine (TBM) in Machinery Manufacturing Branch of Shanghai Tunnel Engineering Co., Ltd (photo)

    http://big5.xinhuanet.com/gate/big5/www.xinhuanet.com/photo/2020-12/26/c_1126909684.htm

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