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h = ×t = 4,19×42 = 176,0 / - .
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() 9.
, (14)
h = ×t = 4,19×25 = 104,8 / ;
h = ×t = 4,19×77 = 322,6 / .
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h = ×t = 4,19×46,6 = 195,3 / .
