During different lift range phases when a CAM controls the distribution spool of a giant hydraulic press, the CAM's requirement for the pressure Angle of its theoretical working profile is different.

凸轮机构控制巨型液压机分配阀芯时，在不同的升程阶段对凸轮理论工作曲线压力角有不同的要求。

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Based on the geometrical relation between tappets and cams, uniform formulas for mutual lift-range transition between flat based tappet, roller (or sphere) tappet and cone tappet were presented.

通过分析不同从动件与凸轮的几何关系，推导出一组平底挺杆、滚子或球面挺杆、尖锥挺杆升程的相互转换通用公式。

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Eventually the clouds lift, and the Hoang Lien mountain range emerges.

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Likewise, China has allowed millions of people to lift themselves out of poverty by expanding the range of choices open to them, by opening markets, not by increasing the minimum wage.

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General Electric alumnus Robert L. Nardelli did a huge store face-lift--better lighting, signage and a new range of appliances to win back women who ditched Depot for archcompetitor Lowe's.

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