principal coordinate

基本解释

According to the orthogonality of principal functions, coordinate changing and uncoupling are completed simultaneously.
最后在主坐标下求解轴系在任意扭矩作用下的动力响应。
Section 2 deals with the computation of the second-degree harmonic coefficients in the principal axes coordinate system;
第二节研究主惯性轴坐标系中2阶位系数的计算；
By coordinate transformation of stress we have the differential relationship between the principal stresses and stress components to facilitate deviation calculation.
利用应力的坐标变换关系，推导出主应力与应力分量之间的微分关系，使主应力的精度计算更加简便。

That report called for the US to coordinate the withdrawal of its forces from Iraq with Iran and Syria - the principal sponsors of both the Shi'ite and Sunni insurgencies in the country.
CENTERFORSECURITYPOLICY: Soldiers of peace