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INTERNATIONAL TELECOMMUNICATION UNION · t1 t2 t3 t4t2 t1 t2 t3: a 10 s = t1 3 s = t2 mv 200 b 10 s = t3 ‘8 5-11 s = t4 bt.0500-05 ksb y. itu-r bt.500-13 15 6 ...
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