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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As the medium of transition from private space to public sphere, education has to be conservative.

作为从私人领域向公共领域过渡的中介地带，教育必须是保守的。

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And the branched structure caused an early transition of the separated domain from the sphere-like to the rod-like, which was interpreted theoretically through a thermodynamic model.

支化结构使分散相区域从球状向棒状形式的相变点提前，通过热力学模型分析，对这一现象进行了理论解释。

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