The balance of inertial Force is the problem often occurring in the design of planar machinery.

在平面杆机构的设计中，惯性力的平衡是经常遇到的问题。

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We, in this paper, first of all, transformed acceleration and force of special relativity, then further studied acceleration and force property under different inertial ordinate system.

本文首先对加速度和力进行了狭义相对论变换，然后研究了加速度和力在不同惯性坐标系中的性质。

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The paper deducts the formula of principal moment of inertial force system of gyroscope and the formula of its principal moment of inertial force system by its moving force.

本文推导出了使回转仪进动的惯性力偶矩公式及由进动产生的惯性力偶矩公式。

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Now the letters of the threads that run continuously beneath the live reporting look to me like the cogs of a virtual flywheel, one that spins ever faster as it tries to provide our inertial present with motive force.

BBC: A Point of View: Nostalgia - it's not like it used to be