Birds store energy as subcutaneous fat deposits or "body reserves"; changes in these reserves can be reliably estimated by measuring changes in body mass.

鸟类以皮下脂肪沉积或“身体储备”的形式储存能量；通过测量体重的变化，可以可靠地估计这些储备的变化。

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Subcutaneous fat and the risk of surgery of his life?

皮下脂肪切除手术的风险大吗？

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Incise the skin and subcutaneous fat, then palpate the lesion and excise the mass.

切开皮肤和皮下脂肪，触及病变并切除肿块。

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Professor Khan said it was possible that subcutaneous fat offset the effects of visceral fat.

BBC: Type of body fat 'boosts health'

Today's procedure is a skin biopsy that will be used to study the genetic markers in their subcutaneous fat.

BBC: 'Not-so-identical' twins may hold the key to disease

At the same time, the recipient would have to have their face, facial muscles, skin and subcutaneous fat removed.

BBC: Surgery