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隧道掘進(jìn)機(jī)設(shè)計(jì),干這個(gè)以后能向什么方向發(fā)展 |
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點(diǎn)評(píng)
長沙鐵建重工也是國企,呵呵還知道中鐵中隧等等,,盾構(gòu)現(xiàn)在還比較熱吧
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