“幻灯机”的概念、定义、翻译、参考文献-科学参考

单词	幻灯机
释义	幻灯机 Encyclopedia 理学〔光学仪器〕释 slide projector幻灯机一种透射式投影设备。用光学方法将幻灯片投射到银幕上观看，由光学系统、机械和控制机构、散热装置组成。幻灯片通常用135规格的彩色反转片或黑白负片翻制成的正片。
随便看	Pontryagin duality theory Pontryagin invariant Pontryagin-Kuratowski theorem Pontryagin maximum principle Pontryagin multiplication Pontryagin number Pontryagin operation Pontryagin product Pontryagin space Pontryagin square Pontryagin surface Pontryagin theorem Pontryagin van Kampen duality theorem Pontryagin-van Kampen duality theorem Pontypool japanned wares Pontécoulant crater Pood pool boiling pooled pooled error pooled residential building pooled residential form pooled standard deviation pooled variance pool fire

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。