As one of the crucial procedures of shield boring, the arriving of shield machines with super-large diameters is complicated in technology and has great risks.
超大盾构的到达施工作为盾构施工的重要环节，工艺复杂，风险巨大。
As one of the crucial procedures of shield boring, the arriving of shield machines with super-large diameters is complicated in technology and has great risks.
超大盾构的到达施工作为盾构施工的重要环节，工艺复杂，风险巨大。
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