balanced hole

基本解釋

An anti_whirl technology keeping the lateral forces and cutters balanced on PDC bit for slim_hole drilling is proposed.
針對小井眼PDC鉆頭的實際工作條件，提出了在小井眼鉆井中具有普遍意義的PDC鉆頭的橫向力自平衡抗回旋技術(shù)。
Axial force is balanced by back vane or balanceable hole, for the specification with big radial force; we adopt double-wear passage design.
軸向力由副葉片或平衡孔平衡，對于徑向力在的規(guī)格采取了雙殼體設(shè)計；
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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.
以瀾滄江糯扎渡右岸泄洪洞出口邊坡為例，進行了區(qū)間極限平衡和區(qū)間有限元分析。