... rind 表面 ring anchorage 圆盘型锚具 ring base type pre-pack screen 环基型预充填筛管 ...
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ring anchorage device 环锚锚具
ring like anchorage 环锚
ring shape anchorage 环锚锚具
ring pre stressed anchorage cable 环形预应力锚索
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The anchorage length of bolt can be controlled by adjusting the distance of anchor-boot and pressing ring.
通过调整压环与锚头之间的距离来确定锚杆的锚固长度。
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