The effect of the reaction conditions on reaction rate and final product particle size was also studied.

同时考察了反应条件对反应速度、最终产品粒度的影响。

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Due to the improvement of the structure of product particle size, the result of reverse flotation was greatly improved, with the metal recovery increasing from 68. 65% to 74. 07%.

由于产品粒度结构的改善，使反浮选选别效果大大提高，金属回收率从原有的68.65%提高到74.07%。

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Well, in physics, momentum is a vector, and it is a product between the mass of a particle and its velocity.

物理中，动量是矢量，它产生于,由粒子的质量与速度。

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