这种物质现已被分子生物学家克隆。
无论加热与否，这种物质都不溶于水。
The substance does not dissolve in water whether heated or not.
因为切洋葱而流出的眼泪就不会含有这种物质。
Tears shed because of exposure to cut onion would contain no such substance.
玉米淀粉和少量水混合后产生的粘稠物质就是这种物质的常见例子。
The gooey substance produced by mixing cornstarch with a little water is a commonplace example of such material.
许多哺乳动物的奶含有大麻素，这种物质可以刺激大脑中的某些受体。
The milk of many mammals contains cannabinoids, substances that are known to stimulate certain receptors in the brain.
幸运的是，Perkin 的科学训练和天性促使他进一步研究这种物质。
Luckily, Perkin's scientific training and nature prompted him to investigate the substance further.
随着重力和机会将较小的碎片粉碎在一起，这种物质逐渐聚集成块状，被称为天体。
This material gradually coalesced into lumps called planetesimals as gravity and chance smashed smaller pieces together.
这种物质覆盖的区域十分巨大，因此使其沉积下来的冰一定是比格陵兰岛或南极洲更大的大陆冰川。
The areas covered by this material were so vast that the ice that deposited it must have been a continental glacier larger than Greenland or Antarctica.
1997年加利福尼亚大学的一项研究表明，一些接受了这种物质的病人能够产生他们自己的天然药物。
Evidence from a 1997 study at the University of California shows that several patients who received such substances were able to produce their own natural drug.
国会对廉价出售的后果一无所知：全球氦气价格被人为压低，以至于几乎没有人愿意回收这种物质或明智地使用它。
The Congress is ignorant of the consequence of fire sale: global helium prices are so artificially deflated that few can be bothered recycling the substance or using it judiciously.
但在大象和宽吻海豚身上也发现了这种物质。
But it's also been found in elephants and bottlenose dolphins.
这种混合物是不稳定的，会迅速重新排列成一种稳定但仍然可逆的物质，这种物质被称为阿马多里产物。
This combination is unstable and quickly rearranges itself into a stabler, but still reversible, substance known as an Amadori product.
这种物质不是通过掩盖猪肠的臭味，而是把它中和了。
It’s not masking the chitlins' odor, but actually neutralizing it.
这种物质是从海藻中提取的。
不管是否加热，这种物质都不会溶解于水。
Whether be heated or not, this substance will not dissolve in water.
这种物质越接近超重黑洞，承受的引力越大。
The closer matter gets to a supermassive black hole, the more gravity compresses the matter.
这种物质似乎与一种名叫过氧化氢酶的酶有关。
That something seems to be related to an enzyme called catalase.
对于国会，正在考虑在一些产品中禁止使用这种物质。
Congress, for its part, is considering banning the substance in some products.
通电后，这种物质可以被分解为一种单一的化学制品和氧。
This substance can be reduced to a single chemical and oxygen by passing an electrical charge through it.
和香烟一样，雪茄里含有尼古丁，这种物质会导致烟草依赖。
Cigars, like cigarettes, contain nicotine, the substance that can lead to tobacco dependence.
今天，这种物质出现在数百种产品中，从体育器械到窗户外层。
The material is found today in hundreds of products from sports equipment to window coverings.
相对于镍氢的电池，这种物质的实体材质被称为镍氢氧化合物。
For the nickel-metal hydride version of the battery, that material is a substance called nickel oxyhydroxide.
当食品加热到120c时似乎就会形成这种物质。
科学家们已经发现成千种高含这种物质的熟食和加工食品。
Scientists have identified high levels in thousands of cooked and processed products.
科学家们假设这种物质的黏着特性保护过敏原免于被降解。
The researchers hypothesised that the gelling properties of pectin were, in some way, protecting the allergens from degradation.
科学家们已经可以用这种物质将物体变得隐形，尽管是在纳米尺度上。
Scientists are already able to make objects seem invisible with this material, albeit on a nanoscale.
直到十年前，美国太空总署开始对这种物质产生兴趣并将其投入实用。
It was not until a decade ago that Nasa started taking an interest in the substance and putting it to a more practical use.
这种物质硬如磐石（石灰石主要就是由碳酸钙构成的），但易溶于酸。
The stuff is tough as a rock (limestone is made primarily of calcium carbonate), but it dissolves instantly in acid.
黑色素暂时的增加是罪魁祸首，这种物质让头发、眼睛和皮肤带上色彩。
A temporary increase in melanin, the substance that colors hair eyes and skin, is the culprit.
黑色素暂时的增加是罪魁祸首，这种物质让头发、眼睛和皮肤带上色彩。
A temporary increase in melanin, the substance that colors hair eyes and skin, is the culprit.
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