它们的

It is impossible to measure with accuracy the quantity of ozone-destroying chemicals that exist as coolants in refrigerators.

本题原因：So前面的话，这些化学物质已经以制冷剂的形式存在，当它们到达臭氧层的时候，它们的行为就不能被阻止简短地说就是：因为已经存在，到达的话，所以一定损害现在要WEAKEN这个论述，则说到和原因，原因和结论之间或结论不一样的就可能是答案

But since these are 'ectotherms'- their body temperature is controlled directly by the environment - everyone assumed that the effect was caused by climate altering their metabolic rate.

但是，因为那些是'外温动物'--它们的体温会直接受环境控制--人人都曾认为这样的影响是由于气候改变了它们的新陈代谢速度而引起的

Since tillandsias, are epiphytes the mounting medium you choose is limited only by your imagination.

因为它们具有附生植物的特性，所以对于定植它们的介质，你的选择会是很多的。

Once they're three months old, geladas ride their mothers jockey-style.

曾经它们是三个月大小的狒狒骑在它们的妈妈的背上像骑马师的风格。

Handed Weapon: Many fighters use a 2-handed weapon (such as a sword, hammer, ax, etc). While these weapons are usually slower than their 1-handed counterparts, they deal much more damage.

双手武器型：许多战士使用双手武器，尽管它们的速度比同类型的单手武器来的慢，但它们可以造成更大的伤害。

Researchers say the roots alert plants to the relationship of nearby plants, because when impatiens were planted near siblings but in separate pots, they didn't recognize their kin.

研究者们称，是它们的根系识别出了周围的植物是否和自己存在亲缘关系，因为把两株存在&亲戚关系&的凤仙花分别栽种在不同的花盆里再并排放置，它们并没有认出彼此。

In this paper, the sparse approximation inverses and eigenvalue translation based preconditioners for Krylov subspace methods are thoroughly researched by situation of research at home and abroad, their internal mechanism are studied also.

本文在国内外关于Krylov子空间方法的稀疏近似逆和基于特征值转换的预处理方法研究状况的基础上，对它们进行了进一步研究，探讨了它们的内部机理。

In the 1980s, the langurs lived in 16 areas of Guangxi. By the late 1990s, they had disappeared from all but three or four areas.

在九十年代初期，叶猴在广西的十六个区域栖身，到了二十世纪末，它们的踪影渐渐的消失，现在我们只能在仅剩的三到四个区域看到它们了。

Elephant handlers called mahouts encourage the animals to play by moving their arms, but the symphonic pachyderms select the notes and rhythms on their own.

大象的经理人叫象管理员去鼓励动物移动它们的肢体，但是交响乐的厚皮动物选择的音符和韵律由它们自己决定。

Because they had a speed close to that of light, they took thirty times longer to disintegrate than muons that just sit still in the laboratory.

因为它们有着与光速非常接近的速度，所以它们的衰变时间是实验室里静止的介子衰变时间的30倍。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。