... Stencil Luma 亮度模板 Silhouette Alpha Alpha 轮廓 Alpha Add Alpha 通道相加 ...
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alpha add alpha
加上
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Research shows that alternative indexing strategies do not add alpha.
FORBES: No Free Lunch from Alternative Indexes
Indexes have morphed from their market-matching beta roots to complex trading- and securities-weighting strategies that are supposed to add excess returns, known as alpha.
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