On certain sites, particularly in South America, savanna formation seems related to frequent cutting and burning of moist forests for pastureland.

在某些地方，特别是在南美洲，稀树草原的形成似乎与频繁地砍伐和焚烧潮湿的森林作为牧场有关。

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Destruction of old material and formation of new material are thus in permanent dynamic equilibrium.

因此，旧材料的破坏和新材料的形成处于永久的动态平衡状态。

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Most of the purported health benefits of tea come from antioxidants—compounds also found in beta carotene, vitamin E, and vitamin C that inhibit the formation of plaque along the body's blood vessels.

茶对健康的好处大多来自于抗氧化剂——在胡萝卜素、维生素 E 和维生素 C 中也发现了抗氧化剂化合物，它能抑制沿身体血管形成的斑块。

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The tests showed it was four hundred years older than the Stonehenge formation in England -- and a thousand years older than the Great Pyramid of Giza in Egypt.

VOA: special.2010.08.03

All these cells come from the bone marrow and biologists have traced the formation of these cells in great detail.

所有这些细胞都来自骨髓,而生物学家已经很详细地,研究了这些细胞的形成过程

耶鲁公开课 - 生物医学工程探索课程节选

And that is how come he got involved in this, obviously this is talking about crystal formation.

这也是为什么他会出现在这里，结晶学就是研究晶体的形成。

麻省理工公开课 - 固态化学导论课程节选

High oil prices and improved horizontal drilling techniques made oil production in tight oil plays like the Eagle Ford Shale in Texas and the Bakken Formation in North Dakota economical for the first time.

FORBES: Connect

The School of One received significant hype and headlines early in its formation, and although the leadership was smart to innovate at first in areas of nonconsumption summer school followed by after school the attention it received in Time magazine and the steadfast championing from former New York City Schools Chancellor Joel Klein has invited a blow back.

FORBES: The Counterproductive Attack on NYC's School of One

The collectors can be installed quickly, with adhesives and tooling used in the roofing industry, and in a dense formation.

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