self focused laser beam中文什么意思

自聚焦激光束

• self:    n. (pl. selves ) 1 ...
• focus:    n. (pl. focuses, f ...
• laser:    n. 镭射激光，受激发射光，激光；莱 ...
• beam:    n. 1.梁，栋梁，桁条；(船的)横 ...