力的直观概念包括力的作用点、大小、方向，这些被称为力的三要素。
Our intuitive concept of force includes such ideas as place of application, direction, and magnitude, and these are called the characteristics of a force.
如果一物体是可以变形的(所有物体都或多或少可以变形)，那么这种形变就取决于力的作用点。
IF a body is deformable, as all are to some extent, the deformation depends upon the point of application of the force.
对严格条分法，用二个平衡方程，并假设条间力的作用方向或条间力的作用点位置，就能求出安全系数。
For strict slice method the safety factor can be obtained by two equilibrium equations given the orientation or the point of force action between the slices.
建立了修正前和修正后的柱面镜面形误差的数学模型，并通过优化计算，找出了最佳平衡力的作用点和大小。
The mathematics model of the error is built. The best position and value of the equilibrant are calculated through optimizing.
虽然实际的阻尼力并非只作用于一个点，而是作用于一个区域，但作用点的讨论仍有十分重要的指导作用。
Although in practice the damp force dose not act on a point but on a section, the discussion of force action point is still significant.
人文力的作用同样遵循着大小、方向、作用点的三要素原理。
The function of humanity force is also in line with the theory of three elements: strength, direction and functional point.
虽然实际的阻尼力并非只作用于一个点，而是作用于一个区域，但作用点的讨论仍有十分重要的指导作用。
Although in practice the damp force dose not act on a point but on a section, the discussion of force...
虽然实际的阻尼力并非只作用于一个点，而是作用于一个区域，但作用点的讨论仍有十分重要的指导作用。
Although in practice the damp force dose not act on a point but on a section, the discussion of force...
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