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Josh
Lv 5
Josh asked in Science & MathematicsEngineering · 7 years ago

Can someone explain this formula to me?

http://i.imgur.com/DhYYykq.png

I'm sure the + is supposed to be an = but I don't understand the dl term at all.

1 Answer

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  • 7 years ago
    Favorite Answer

    It sounds as if they're saying d-sub-l is found by taking the smallest and largest diameters in the size class, then cubing each of those two, and taking their arithmetic average.

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