1. Many people have written to me describing their feelings of fear during projection. 许多人写信给我，描述他们在投射期间的恐惧心情。
2. The discrete calculation of coordinates in principle projection direction uses two integer arrays which represent two lines. 主投影方向坐标的离散计算可通过两个整型数组（代表双直线）快速获得。
3. The study and improvement of projection algorithm have important practical meaning in the three dimensional measurement systems. 在三维激光测量系统中，投影算法的研究和改进具有很重要的实际意义。
英英解释
n.
1. a prediction made by extrapolating from past observations
2. the projection of an image from a film onto a screen
3. a planned undertaking
4. any structure that branches out from a central support
5. any solid convex shape that juts out from something
6. (psychiatry) a defense mechanism by which your own traits and emotions are attributed to someone els
7. the acoustic phenomenon that gives sound a penetrating quality
8. the representation of a figure or solid on a plane as it would look from a particular direction
9. the act of projecting out from something
10. the act of expelling or projecting or ejecting
