These equations most briefly demonstrate the relationship between rotational motion quantity of body and principal moment of force system.

这些方程最简明地给定了物体转动运动量与物体所受力系主矩之间的关系。

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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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In such case, it is proved that, for the unique existence of solution, there must be given in addition the principal vector and the principal moment of the external forces on each boundary contour.

在这种情况下，为了解的唯一性，证明了必须另外给出每一边界围线上外力的主矢量与主力矩。

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Columbine Principal Frank DeAngelis called for a moment of silence for the two students and one teacher -- Dave Sanders -- killed in the shooting.

CNN: Columbine seniors graduate under the shadow of shooting

Curiously, such sentiments seem to be dominating Bush Administration policy toward the region at the very moment that State Department experts are confronting the unravelling of one of their principal theses, i.e.

CENTERFORSECURITYPOLICY: Center for Security Policy | Time To Reinvigorate The US-Israeli Strategic Relationship