The effect on the well-being and existence of a species is just the result of the effects of selection on all the individuals of the species.

对一个物种的福祉和生存的影响，只是对该物种所有个体的选择所造成影响的结果。

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This paper addresses the theory, well selection conditions, design principle and operation process of this technology.

本文介绍了该工艺的原理、选井条件、设计原则以及施工工艺。

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The effect, principle, application range, parameter analysis, design and well selection of an intelligent plunger gas lifting system are systematically studied.

系统研究了智能柱塞气举系统装置的作用、工艺原理、适用范围、参数分析设计、选井应用。

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Because we hold relatively stable, relatively well-diversified portfolios, security selection turns out not to be an important determinant of returns for most investors and market timing turns out not to be an important determinant of returns.

因为持有相对稳定,和相对分散的投资组合,证券选择不再是,决定投资者回报率的重要因素,而市场时机选择,也不会成为决定回报率的重要因素

耶鲁公开课 - 金融市场课程节选

If security selection is a zero-sum game, the amount by which the winner wins equals the amount by which the loser loses -winners and losers being defined by performance after a security selection that has been made -well, that sounds like a zero-sum game.

如果证券选择是一个零和博弈,赢方赚得的金额,等于输方赔付的金额,谁赢谁输取决于,双方投资在证券选择后的表现,这听起来确实像个零和博弈

耶鲁公开课 - 金融市场课程节选

There's also hard-to-find grass-fed meats, ready-to-cook organic and free-range chicken, and a well-stocked selection of just-caught seafood.

CNN: America's healthiest grocery stores

It's Marlowe on Avenue Road for cashmere and Corbo on Bloor for a well-edited selection of designer women's clothing.

FORBES: Travel

They would then invest the money in a well-vetted selection of mutual funds.

FORBES: Here's A Radical Idea: Fiscal Responsibility