“摄影比例尺”的概念、定义、翻译、参考文献-科学参考

单词	摄影比例尺
释义	摄影比例尺 Encyclopedia 工学航空摄影释 photographic scale摄影比例尺摄影机主光轴方向上物镜主距与物镜前节点至被摄物体之间的距离之比。
随便看	positive quadratic form positive quantity positive ray function positive real axis positive real control positive real function positive real number positive real part positive real system positive recurrent point positive recurrent state positive reinforcement positive relation positive result positive root positive root system positive rotation positive school of criminology positive selection positive self-adjoint operator positive self-regard positive semi-definite positive semi-definite form positive semi definite Hermitian matrix positive semi-definite Hermitian matrix

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。