加速调节皮肤新陈代谢的速度，增加细胞活力。

The accelerate adjusts the speed of the skin metabolism, the advance cell vigor.

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加速调节皮肤新陈代谢的速度，增加细胞活力。

To regulate the speed of(an engine)with a throttle.

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实际上，发现PDFA - A(因此孕酮也)增加平滑肌细胞的生长和活力，证明这两种分子都有支持血管发生的作用。

And in fact, PDGF-A (and so progesterone) was found to increase the growth and viability of smooth muscle cells confirming a role to both these molecules supporting angiogenesis.

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