Sometime between 2020 and 2050 the world's fertility rate will fall below the global replacement rate.

世界人口生育率将在2020至2050年期间降至世界生育替代率水平以下。

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By about 2020, the global fertility rate will dip below the global replacement rate for the first time.

到2020年左右，全球生育率将第一次低于全球生育等值替换水平。

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The MAC Directive (EC Directive 2006/40/EC) refers to the phasing out of HFC 134a in new vehicles from 2011 and a replacement gas with a maximum global warming potential (GWP) 150 will be introduced.

MAC 指导说明（EC 指导说明2006/40/EC）是指自2011年起出产的新车中HFC134a要禁止使用，另一种气态制冷剂将其取而代之，它的最高全球变暖潜能（英文简称GWP）是150。

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In fact, it is now positioned as a solution to global climate change as a replacement for fossil fuel based energy (burning coal or natural gas).

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One alternative you could consider amid the global uncertainty is a stock-replacement strategy, where you sell stocks that you like and buy in-the-money or longer-dated call options on those same equities.

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If all women had this ability, survey data shows, average global childbearing would immediately fall below the 'replacement fertility' value of slightly more than two children per woman.

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