UC知道高分求机械工程专业英语翻译1
来源：百度知道 编辑：UC知道 时间：2024/05/31 13:18:14
A force is a push or pull.The effect of a forceeither changes the shape or motion of a body or prevents other forces from making such changes.Every force produces a stress in the part on which it is applied.Forces may be producedby an individual using muscular acion or by machines with mechanical motion.
Forces are produced by physical or chenical change,gravity,or changes in motion.When a force is applied which tends to stretch an object,it is called a tensile force.A part experiencing a tensile force is said to be in tension.A force can also be applied which tends to shorten or squeeze the object.Such a force is a compressive force.
A third force is known as a torsional force,or a torque since it tends to twist an object.Still another kind of force,which seems to make the layers or molecules of a material slide or slip on one another,is a shearing force.
Each of these forces may act independently or in combina
A force is a push or pull. The effect of a force either changes the shape or motion of a body or prevents other forces from making such changes. Every force produces a stress in the part on which it is applied. Forces may be produced by an individual using muscular (action) or by machines with mechanical motion.
力可以是推力或是拉力。力量可以改变一个物体的形状或运动，或者阻止其他力量造成这种改变。每种力量在其使用的部位都会产生应力；力量可以由人通过肌肉的活动或者是机器的机械运动所产生。
Forces are produced by physical or (chemical) change, gravity, or changes in motion. When a force is applied which tends to stretch an object, it is called a tensile force. A part experiencing a tensile force is said to be in tension. A force can also be applied which tends to shorten or squeeze the object. Such a force is a compressive force.
物理或化学变化，引力或运动中的变化都可产生力量。当力量的使用趋向于伸展某个物体时，这被称作拉伸力，而受拉伸力的部位称为受拉或张力。力量也能缩短或压榨物体，这种力量称为压缩力。
A third force is known as a (torsion) force, or a torque since it tends to twist an object. Still another kind of force, whi