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Question added by عبد السلام هلال TECHNIQUE EDUCATION EDUCATION
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Answer added by  haya aleatan, specialist, royal mediacal services then private sector
6 years ago

to avoid post inflamatory hyperpigmentations after the procedure .

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Answer added by  Mohamed OTHMAN, معلم, منطقة سوهاج الازهرية
6 years ago

Laser skin resurfacing can reduce wrinkles, skin spots, and skin imperfections    

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Answer added by  Mohamed OTHMAN, معلم, منطقة سوهاج الازهرية
6 years ago

The laser is classified into four classifications that are dangerous to living cells.    

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Answer added by  Mohamed OTHMAN, معلم, منطقة سوهاج الازهرية
6 years ago

  Engineers use lasers to measure distances and altitudes It also uses in some medical processes such as blood vessels, treatment of spots appearing in the skin, treatme ... See More

mohamed abdenour sahari's image  
Answer added by  mohamed abdenour sahari
7 years ago

When the two scientists published the details of their laboratory apparatus in 1957, an international competition began to devise more practical lasers. Schawlow concent ... See More

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Answer added by  Akhtar GADEHI
8 years ago

In an ideal transformer, the emf induced in the primary side is called self induced emf, and the current due to that self induced emf is called self induction current. wh ... See More