“primary focal point”的概念、定义、翻译、参考文献-科学参考

单词	primary focal point
释义	primary focal point Physics 光学、声学光学 object-space focus物方焦点曾称“第一焦点(primary focal point)”。
随便看	standardization for inland ships standardization for power company of China standardization in press and publication standardization of aquatic organism breeding standardization of Chinese writing system standardi-zation of electronic government standardization of geographical names standardization of information work standardization of knowledge organization work standardization of nuclear electronic instrument standardization of police law enforcement standardization of sampling standardization of transportation safety standardization problem standardization program standardization review standardization system of sports industry standardized standardized achievement test standardized coefficient standardized design standardized design of ground engineering standardized design of machinery standardized distribution standardized fertility rate

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。