在岩体切割、钻孔或破碎时，明确圆柱荷载周边产生的破坏机制，是提高切割效率的重要课题。
When cutting, drilling and fragmenting rock, failure mechanism around cylindrical load is an important research subject to improve cutting efficiency.
提出查询可靠率的概念，用来反映经由该节点的历史查询成功率及其周边环境路由效率。
The query reliability rate is gained to reflect the peer's history query success rate and the routing efficiency of its neighbors.
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