What does this notation signifiy?

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The discussion centers on calculating the amount of aluminum needed to create a line of dislocations between two points, given a dislocation density of 10^10 cm/cm^3. The key point is the interpretation of dislocation density, which indicates that for each cubic centimeter of aluminum, there is a total dislocation length of 10^10 cm. However, it is noted that dislocation density is often expressed in terms of lines per area, specifically lines per cm^2, which may be more common in practice. The conversation emphasizes the importance of understanding the units and their implications for accurately calculating dislocation lengths in aluminum.
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I have a problem asking me how many grams of aluminum are needed to make a line of dislocations from some point A to B is the dislocation density is 10^10cm/cm^3 does this mean for each cubic centimeter of aluminum that there are 10^10cm worth of dislocation length? This is what I suspect but I don't want to foul it up on assumptions.
 
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I believe that's correct. I think however, it is more common to use the units of number per area (lines per cm^2).
 

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