Zobrazeno 1 - 1
of 1
pro vyhledávání: '"Almasiyeh MA"'
Publikováno v:
Cell Journal, Vol 5, Iss 4, Pp 146-152 (2004)
Introduction: Laser pointers are devices that produce a weak laser beam of 630-680 nmwavelength and 1-5 mW power (ClassII or III A laser). These devices generally emit a redbeam that is used by lecturers and teachers for presentations. Some children
Externí odkaz:
https://doaj.org/article/774402f6a65340b6b2bb4ec2ae0e55db
