当主光轴旋转时，因为失衡品质离心惯性力的效用，主光轴将萌生屈曲变型。

When the axis of rotation, because of the imbalance in the quality of centrifugal force between the utility, will the initiation of buckling deformation.

从主光轴外伸端向泵看，为顺时针扭转。

Overhang from the spindle to the pump to see, for clockwise rotation.

针孔成像模型下非主光轴上的球体成像为椭圆，椭圆中心偏离球心投影点。

The image of sphericity which does not located the principal optic axis is an ellipse based on pinhole model, and the image center offsets from the projection of the sphere center.

用几种分光光度计研究了一些一轴晶矿物平行和垂直于主光轴方向的吸收程度。

Degree of absorption along and perpendicular to the main optical axis was studied for some uniaxial minerals, using several types of spectrophotometers.

提出了一种沿主光轴方向影像的单像空间后方交会方法，实现了相机检校和空间后方交会的同时进行。

An algorithm for the resection of imagery along the optical axis is presented to implement both of the camera calibration and resection at the same time.