negative gradient methods
...负梯度方法；线搜索精度 [gap=1258]Key words: operations research; unconstrained convex quadratic programming; negative gradient methods; line search accuracy ..
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negative gradient methods
负梯度法
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Methods the pig skin was treated with negative pressure by a self-made device to remove the blistered epidermis, then dermal cells were removed by ion detergent with osmotic pressure gradient effects.
方法：利用自制的装置，先将猪皮经负压处理，去除起泡后的表皮，然后利用离子型去污剂的渗透压梯度作用去除真皮内的细胞成分。
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