我不了解86代购,在邮局画框也不可能按秤的重量邮寄,他们叫:Cube Weight

How to Calculate Cube Weight

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The simplest way to calculate the weight of a cube is to weigh it on a scale. However, the basic properties of a cube allow for the calculation of its mass by using the measurements of its volume and its density. The mass of an object is indistinguishable from its weight in a normal environment because the exertion of the force of gravity on the object is inferred in the calculations. Calculating a cube's weight can also be as simple as a few steps of multiplication.



Read more : http://www.ehow.com/how_7503386_calculate-cube-weight.html

 

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