“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	urban shoreline urban shrinkage urban smart growth urban social psychology urban social studies urban sociology urban soil urban soil microbes urban spatial development direction urban spatial gravity model urban spatial segregation urban spatial structure urban spatial structure in China urban structure urban style Urban Sub-center Planning（Tongzhou） urban subterranean space engineering urban suburb in China urban succession theory urban surface urban surface energy balance urban surface water balance urban survey urban survey unit urban sustainability

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。