The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
Bookmark and Share
ji guang de miao yong
Author(s): 
Pages: 55-56
Year: Issue:  3
Journal: China Ethnicity

Keyword:  红宝石激光器科学技术二十世纪兄弟民族能量辐射发光手电原子能半导体爱因斯坦;
Abstract: <正> 解放前,我国有的兄弟民族还停留在“钻木取火”的阶段,偶而看见电灯或手电,就疑为“神火”。现在完全不同了,像电灯、手电已成为日常用具,再也不感到稀奇了。但是,科学技术在发展,同原子能、电脑一起被称为二十世纪三大发明的激光,又摆在了我们的面前。
Related Articles
No related articles found