Lower and raise the ramp to see how the Angle of inclination affects the parallel forces acting on the file cabinet.

把斜坡抬高或放低，看倾斜角度如何影响文件盒上的平行作用力。

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For a complanate parallel chords truss, the axial forces of a member can be solved by the shear-diagram and two simple expressions.

借助与桁架对应的梁的剪力图和弯矩图根据两个关系式可直接求出一般平面平行弦桁架任一根杆件的轴力。

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The results indicates that the actuating forces of parallel manipulators can be significantly reduced by redundant actuation.

结果表明，加入冗余驱动，可明显降低并联操作手的驱动力。

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And as that deployment begins, Israel will start withdrawing its forces from southern Lebanon in parallel.

NPR: U.N. Resolution Points to Peace in Lebanon

They also noted the deployment of Russia's most advanced S-400 air defence system in Belarus and a parallel drill conducted by the Strategic Rocket Forces, the guardians of the Kremlin's nuclear arsenal.

ECONOMIST: NATO and Russia