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1·The resultant force and the moment of force or torque acting on the mandible which were derived as a function of jaw opening Angle generate accelerations.

在本文建立的力学模型中，作用在下颌上的合力和合力矩表示成下颌运动张角的函数。

2·Abstract: this paper points at that the resultant braking force point of drum brake is on the base circle and finds the relation between the structural parameters of shoe block and moment of force.

文摘：该文阐明制动力的合力点在基本圆上，并找出蹄块结构参数与制动力矩之间的关系。

3·According to simplifying rule of force system, the force suffered by a coil carrying current in magnetic field, can be summed up to a resultant of magnetic forces and a total moment of magnetic force.

本文从磁能出发分析外磁场作用在任意载流线圈的磁力和磁力矩，从而推证出任意载流线圈在均匀磁场中所受磁力矩公式。