The keys to energy density and weight loss.
运用能量密度减肥的关键。
Color has properties of weight, density, transparency, and so forth.
颜色有重量、透明度等属性。
Body weight is positive correlation with bone density.
体重与骨密度呈正相关。
Light weight, higher energy density, small volume.
轻便，高能量，体积小。
Light weight, higher energy density, small volume.
轻便，高能量，体积小。
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