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.

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。

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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.

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。

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In the field tests, it has been proved that the safety of oil tank lifting is closely correlative with the lifting force and the stress status at the action point.

现场实验证明，单点提升力和罐壁受力点的应力状况直接关系到油罐举升的安全。

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At that point, much of the action in missile defense shifted to the Air Force, which was the lead service for military uses of space.

FORBES: Missile Defense Becomes A Navy Mission

And this brings us to the final point: Their equivocation between private investor action and the use of government force to impose a single solution on all big banks, against the will of the investors.

FORBES: The War Against Big Banks Is A War Against Your Mind