balanced hole

基本解释

An anti_whirl technology keeping the lateral forces and cutters balanced on PDC bit for slim_hole drilling is proposed.
针对小井眼PDC钻头的实际工作条件，提出了在小井眼钻井中具有普遍意义的PDC钻头的横向力自平衡抗回旋技术。
Axial force is balanced by back vane or balanceable hole, for the specification with big radial force; we adopt double-wear passage design.
轴向力由副叶片或平衡孔平衡，对于径向力在的规格采取了双壳体设计；
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Lancangjian River Nuoza crossing right bank flood carrying hole as an example, made interval limit balanced and interval limited element analysis.
以澜沧江糯扎渡右岸泄洪洞出口边坡为例，进行了区间极限平衡和区间有限元分析。