echelon a very high resolution diffraction grating made from a stack of identical glass plates offset like steps – Meaning and Explanation

Part of speech : Phrase

Urdu Meaning (اردو معنی)

زینہ دار ، جالی کی قسم سپیکٹرو سکوپی میں عام انکساری جالی کی جگہ لیتی ہے جب زیادہ پگھلاﺅدرکار ہو ایک اعلٰی ریزولوشن والی ڈفریکشن گریٹنگ ۔

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