But the weakness of the easy damage and difficult repaired of shield tail brush restrict the shield long advance.
而盾构尾刷的容易损坏且较难更换的缺点，制约了盾构长距离掘进。
The shield tail brush is an important accessory in soft soil tunnel shield device, and is often used in the tunnel construction.
盾尾刷是软土层隧道盾构设备中的一个重要配件，在隧道施工中常被使用到。
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