有效投射光线依照其投射角，由光斑的不同部位进入眼中。
The effective incident rays entered the eye from different parts of the reflection disc according to their incident angles.
这些公式的运用很简便，只常将回转曲面的纵母线函数及投射角的值代入即可。
When calculating, only function of the longitudinal generating curve of the revoluted curved surface and the value of the projecting angle are needed to be substituted into these formulas.
线片测量包括脊柱侧凸、T12-S1前凸、冠状面和矢状面平衡性以及骨盆投射角。
Radiograph measurements included the scoliosis, T12 to S1 lordosis, coronal and sagittal balance, and pelvic incidence.
应用推荐