7.8dm = M = mm 70 micron = M = mm 500 cubic centimeter = cubic meter 0.5 liter = cubic decimeter = cubic meter 0,5 ton = kilogram 10-10m nano micro meter

7.8dm = 0.78m = 780mm, 70 μ M = 7x10 to the - 42nd power, 500 cubic centimeter = 0.0005 cubic meter, 0.5 liter = 500 cubic meter, decimeter = 0.5 cubic meter, 0.5 ton = 500 kg

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