随着时间的推移，毛囊就会发生改变并收缩，导致头发稀疏。
Over time, the hair follicles will change and shrink, leading to thinning hair.
目的分析肌肉等长收缩持续时间与人体血压变化之间的关系。
Objective To observe the relationship between duration time of isometric contraction and blood pressure.
目的分析肌肉等长收缩持续时间与人体血压变化之间的关系。
Objective To observe the relationship between duration time of isometric contraction and blood pressure.
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