“principal point”的概念、定义、翻译、参考文献-科学参考

单词	principal point
释义	principal point Encyclopedia 艺术学镜头参数释 principal point主点物方主平面和像方主平面各自与光轴的交点，分别称为物方主点和像方主点。物方主点和像方主点统称为主点。 Physics 光学、声学光学 principal point主点 principal point主点^† Mathematics principal point主点
随便看	undershooting undersize undersocialized undersonic frequency underspeed understandability understandable understanding Understanding and Interpretation:A Study of Audience and Museum Learning Understanding Media: The Extensions of Man Understanding Poetry understanding psychology understanding's legislation for nature understanding sociology Understanding Your Visitors:The Operation and Visitor Behavior Study of Shisanhang Museum of Archaeology understressing underswing Under the Ancestors' Shadow Under the Banner of Marxism Under the Fence Under the Hawthorn Tree Under the Lion Rock Under the Roof of Shanghai Under the Tongue Under the Traffic Light

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。