principal axis

The principal compressional stress axis obtaind through focal mechanism solutions show NNE and NW orientations.

由震源机制解求出的主压应力轴为北北东向和北西向.

Rotating the image according to the inertial principal axis can normalize it in position.

通过计算惯性主轴及图像旋转完成了位置归一化处理.

In this paper, an algorithm of linear regression algorithm of least square with guideline of principal axis is derived according to the practical situation of application in reservoir engineering.

结合油气藏工程应用中实际，推导了线性回归主轴准则最小二乘线性回归算法。

First, we used the principal component analysis to determine the initial axis of symmetry, and then combined the moment of inertia to further pinpoint the accurate symmetry-axis linear equation.

首先，利用主元分析法初步确定对称轴；然后结合转动惯量法进一步精确定位对称轴直线方程；

The principal axis effected the moving stability and action accuracy of the R 20 cathode bobbin making machine.

主轴直接影响R20电芯成型机的运行稳定性及机构动作的准确性.

Double row cylindrical roller bearing is applied on machine tool principal axis.

双列圆柱滚子轴承适用于机床主轴.