The length of the lever of bone that the Achilles tendon pulls on also differed, being a quarter shorter in sprinters.

他们还发现，跟腱拉伸时所产生的“杠杆长度”也有差别，短跑运动员的“杠杆长度”要短四分之一。

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Objective: to observe the effect of alendronate and raloxifene on the lever of biochemical indices, histomorphometry and bone density in the experimental osteoporosis and periodontitis rats models.

目的：建立实验性骨质疏松大鼠牙周炎模型，观察用药后大鼠血生化指标、骨密度的变化和组织病理学改变。

youdao

Objective: to observe the effect of alendronate and raloxifene on the lever of biochemical indices, histomorphometry and bone density in the experimental osteoporosis and periodontitis rats models.

目的：建立实验性骨质疏松大鼠牙周炎模型，观察用药后大鼠血生化指标、骨密度的变化和组织病理学改变。

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