The productsofinertia of the inner or outer gimbal ring may not be equal to zero, if the rings have not been dynamically balanced.
如果陀螺仪的内环或外环没有经过动平衡,就不能认为它们的惯性积等于零。
2
Such a decomposition greatly facilitates the formulation of the theorem of parallel axes for the moments or for the productsofinertia.
如此的分解,能使转动惯量平行轴定理或惯量积平行轴定理均极其便于表述。
3
Brand loyalty and inertia among older consumers will make it almost impossible to grow the market share of new products by more than a couple of percentage points a year.