Indeed, they report, FSH stimulates receptors found on the surface of bone-degrading osteoclasts and their precursors, leading to the bone cells' formation and function.

事实上，FSH刺激破骨细胞和破骨细胞前体细胞表面的受体，促进骨细胞产生及发挥功能。

youdao

Her partial prosthesis had worn through the bone on the lower surface of her knee.

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The surface of the road still needs work, but the improvements already mean that a bone-shaking two day journey has been turned into a very dusty but manageable 12-hour drive.

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Doctors at the Rizzoli hospital stressed that they also took great care not to ruin the face of the donor, substituting the removed bone with a wax mould, and avoiding making any surface cuts to the deceased's face.

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