... drill boom 凿岩机支臂 drill bow 手钻弓柄 drill capacity 钻机能力 ...
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手摇钻弓柄 drill bow 手摇钻机 hand boring machine; hand drill machine; manual auger ..
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Bow-Drill Fire Making 钻木取火
Bow Drill 钻木取火
drill l bow 手钻弓柄
bow w drill 弓钻
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The paper research the problem of bow to build the model of cutter with the design technology of virtual product, and built the 3D models of twist drill, gang drill, gear hob;
讨论了用虚拟技术对复杂金属切削刀具进行建模的问题，建立了麻花钻、群钻、齿轮滚刀的三维数字模型；
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