A bulk progeny test is a simple way to learn the effectiveness of mass selection.

集团后代测验是了解混合选择有效性的一个简单方法。

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The genetic quality of the parents can be judged with much greater certainty than in mass selection.

亲本的遗传品质比起混合选择来，能判断得更加确切。

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With regard to the problem that original feature in image classification is mass and redundancy, a new image feature selection method was presented.

针对目前图像识别中原始特征数量大、不相关特征多以及冗余等现象，提出了一种图像特征选择方法。

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The notions selection might be mass-produced, but it's useful, and adds to the old-timey aesthetic that's so hot right now.

WSJ: Comforting the Wealthy

Some chains, such as Target, an American mass-merchandiser, compete against Wal-Mart with a more carefully edited selection of goods and employ top designers for some own-label goods.

ECONOMIST: Competition in your local supermarket is getting vicious