optical mark reading sound of pronunciation

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optical mark reading in Hindi：प्रकाशिक चिह्न पठन; ‍प्रकाशिक चिन्‍ह पाठ्यांक

Neighbors

"optical lever" sound, "optical libration" sound, "optical light filter" sound,

"optical line spectrum" sound

"optical line specturm" sound

"optical maser" sound

"optical measurement" sound

"optical mechanical scophony system" sound

"optical memory" sound