由力

由力敏Z-元件构成的多功能压力开关

The Multifunctional Electronic Pressure Switch by Force - Z-element

空间伸展臂由力螺旋控制的弹性盘绕折叠

On Elastic Coiling Process of an Extendable Space Mast by a Pair of Force Screws

对于由力控制的拉弯成形方式，夹钳运动轨迹很难直接给出。

However , it is difficult to directly describe the movement of jaws for force-controlled stretch bending .

针对由力的平衡条件确定的曲率半径计算方法做了进一步的分析研究，推导出了较为精确的计算公式。通过实际例子的计算，进一步验证了计算公式的准确性。

Analyzed to the strength equilibrium condition with horizontal curves due to calculate of radius of curvature , deduction calculate of formula was precise .

在动力学创立之前和初创时期，不可能由力对物体的运动效应来研究力，静力学发展了独立的纯数学的体系。

Before the founding of dynamics and during its initial stage , it was impossible to study a force by the motion effect of a force on object .

提醒你们，假设力场中有一固体，可以由力对固体的作用测量出其扭转力矩。

I want to remind you that if we have a solid in a force field , we can measure the torque exerted by the force on the solid .

该装置用步进电机驱动，用单片机对步进电机进行精确定位和调速，并且由力传感器和应变仪来测量切应力数值[3]。

This equipment is drived by step-motor , at the same time its precise location and velocity modulation are controlled by one chip computer and yield stress is measured by force sensor and strain tester .

针感力可以由针尖在虚拟组织的位置和速度，结合组织的力学模型计算获得，并由力反馈装置反馈给操作者。

Through the physical models of tissues , the feedback force can be computed by the position and speed of needle in virtual system , and be returned back to acupuncture leaner through force feedback device .

由力平衡关系推出了偏心液环的偏心率的定量表达式，指明增加低粘液体的粘弹性和速度，减小液环厚度，是减小偏心的有效方法。

The quantative expression for the eccentricity of the eccentric liquid ring is derived through force balance , pointing out that the effective way to reduce the eccentricity is to increase the viscous elasticity and speed of the low viscous liquid and bring down the thickness of the liquid ring .