First, the surface temperature of the hinge must exceed the glass transition temperature of the material, which is the point at which the material begins to soften.

第一，折痕表面温度必须超过材料向玻璃过度的温度点，即材料开始变柔软的温度点。

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On military aircraft, hydraulic pressures of actuators caused by hinge torque vary with aerodynamic force on control surface due to different flight states.

飞机在不同的飞行阶段和飞行状态下，由于作用在控制面上的气动负载不同，因而由铰链力矩引起的液压作动筒压力也在变化。

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This paper presents a new approach to determining the moments of inertia of the control surface or tab about its hinge line.

本文提供了一种试验测定操纵面或调整片绕自身铰链轴线的转动惯量的新方法。

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Honorable mentions go to the Lenovo Yoga 11, with its 360-degree hinge, and Microsoft's Surface with Windows RT along with its "click in" keyboard covers.

ENGADGET: Switched On: The 2012 Switchies, Part 1

The Surface's built-in kickstand threw another wrench into the design process, as did the magnetic hinge used to attach the keyboard covers.

ENGADGET: Microsoft Surface: inside the three-year secret project to build the first great Windows tablet