China has independently developed a large-diameter main bearing for its shield tunnel boring machine, highlighting the country's breakthrough in integrated technology design and manufacturing of heavy-duty shield machines.
More details here.
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2022-12-16T22:42:13.343Z
China has independently developed a large-diameter main bearing for its shield tunnel boring machine, highlighting the country's progress in | World | CNN
China has independently developed a large-diameter main bearing for its shield tunnel boring machine, highlighting the country's breakthrough in integrated technology design and manufacturing of heavy-duty shield machines.
More details here.
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