Rotational vector is a simple and effective means of researching resonance.
旋转矢量法是研究谐振动的简洁而有效的方法。
On dry surfaces, the front of a spinning sphere generates more friction than the back, and the sphere veers in a direction different from that of the rotational vector.
在干燥表面上，球体运动时前方受到的摩擦力比后方要大，且其旋转方向和滑行方向是不同的。
The new method firstly obtains two approximate rotational invariance relations about distributed sources central DOA by the Taylor series expansion of array steering vector.
新方法首先通过阵列方向矢量的泰勒级数展开获得关于分布源中心DOA的两个近似旋转不变关系。
The application shows that it can analyze the change of the short-time energy of vector signals as frequency and time change, being applicable to the fault diagnosis of rotational machinery.
研究表明，短时矢功率谱可以对矢量信号的短时能量随频率、时间等的变化过程作出分析，可以应用于旋转机械故障诊断实践中。
The product rotational alignment parameters at different collision energies and the vector correlations between the reagent and product are numerically calculated.
计算了不同碰量相关撞能情况下产物分子的转动取向参数和反应物与产物之间的矢分布几率函数。
The product rotational alignment parameters at different collision energies and the vector correlations between the reagent and product are numerically calculated.
计算了不同碰量相关撞能情况下产物分子的转动取向参数和反应物与产物之间的矢分布几率函数。
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