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REFRAKTOMETRHO

REFRAKTOMETRHO, asbobhoeand baroi chen kardani nishondihandai shikasti rushnoi. Laboratori va sanoati (datchikhoi refraktometri) meshavand.

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SAMOLYOT

SAMOLYOT, apparati parishi muharriku boldori vaznintar az havoet, ki baroi parvoz dar atmosfe¬ra tain shudaast. …