为控制害虫，人们持续且不计后果地使用人工合成化学品，对农作物和人类健康造成危害，事实证明会产生相反的效果。
The continuous and reckless use of synthetic chemicals for the control of pests which pose a threat to agricultural crops and human health is proving to be counter-productive.
她也指出，在数十万的环境化学因素中，也只有很少一部分经过了测试，证明了其与肥胖症有关。
She also points out that only a few of the tens of thousands of known environmental chemicals have been tested for their association with obesity.
一种使大鼠和小鼠致癌的化学物质，后来发现可减少人类某些癌症的大小，数年后该作用又被证明无效。
A chemical found to cause cancer in rats and mice was later found to reduce the size of some cancers in humans, years after it had been deemed useless.
但要证明这一观点则十分困难，因为要刮下一小块蒙娜丽莎的脸作为化学分析样本是无论如何都不可能得到允许的。
But proving this has been difficult because snatching a sample of the Mona Lisa's face for chemical analysis is, unsurprisingly, frowned upon.
这个独一无二的观测结果证明，哈勃和其它望远镜可以从其它一些天体的大气中进行化学构成的采样工作。
The unique observation demonstrates that Hubble and other telescopes can sample the chemical makeup of the atmospheres of alien worlds.
—深色染发剂：已被证明含有致癌化学物质煤焦油。
Dark hair dyes: They are known to contain coal tar, a carcinogenic chemical.
路德医生将针对该蛋白的特定化学染色剂注入死亡病人的大脑斑块中，从而证明了这一蛋白的存在。
Certainly, when Dr Luider applied a chemical stain specific to that protein to the plaques of dead Alzheimer’s patients he found the protein present in them.
也就是，从中我们将证明，混合物的化学势，永远比纯净物的低。
Which is that, from what we're going to prove, is that the chemical potential in the mixture is always less than for the pure substance.
这种方法最终证明在物理学与化学两个领域都非常有效，因为用粒子加速器或试管制造的那些最小成份都有着各自的运动机理，而且其运动趋势与后果都可以被预测。
This turns out to be immensely useful in physics and chemistry, because the smallest components coming from a particle accelerator or a test tube behave individually in predictable ways.
最后，阿部采用化学方法破坏了一些小鸟脑部中被称为巢皮质前端（anterior nidopallium）的区域，因而它能证明其对寄存有错误的语法非常重要。
Finally, Abe chemically destroyed an area of the brain called the anterior nidopallium in some birds, and was thereby able to demonstrate that it is vital for registering faulty grammar.
这是华盛顿大学化学期中考试中的一道真题：“地狱是放热的还是吸热的？试证明你的观点。”
The following is an actual question given on a University of Washington chemistry mid-term exam paper.
缺少阳光，长时间在室内呆着会容易让人感觉到疲劳，研究证明阳光可以刺激大脑内的化学物质从而达到愉悦心情的效果。
Research suggests that light stimulates brain chemicals that improve mood.
但这再也不会过多困扰我了因为我知道他只是他这一类型的典型，而我也是我这一类型的典型- - -我们有化学依据可以证明的。
But it doesn't bother me so much because I know he's being true to his type, and I'm being true to mine - we have the chemistry to prove it.
人们对于这项法案的批评是，这项法案假设一种化学物质是安全的，直到它被证明具有毒性。
People's criticism of that law is that it has tended to treat chemicals as safe until proven to be dangerous.
不，我指的不是花生酱杯，而是被科学证明的，可以更好调整大脑化学物质的营养食品。
No, I'm not talking peanut butter cups here, but nutritious foods that have been scientifically shown to tweak brain chemistry for the better.
有很多证据可以证明社会化学习、参与，以及与他人分享是更有益的学习方法，而不只是单纯的引经据典或是获得原始的知识。
There's a lot of evidence that social learning, engaging, and sharing with others is a far more effective way of learning than simply chasing citations or raw knowledge acquisition.
但是，欧盟一个重要的研究证明，在薯条，速溶咖啡，面包，饼干，薯片，早餐谷类食品和婴儿食品这一系列产品中还含有大量这种化学物质。
But a major study by the European Union has confirmed that there are still large amounts in a range of items including chips, instant coffee, bread, biscuits, crisps, breakfast cereals and baby food.
世界自然基金会曾呼吁REACH应责令企业寻找危险化学品的替代物，即使企业能够证明这些化学物品的使用非常安全。
WWF had argued that REACH should oblige industry to find alternatives to hazardous chemicals, even when firms can show that they are being used safely.
会议中博斯发言说：“从总体数据来看，我们有强有力的证据证明那个电化学反应中产生了核反应。”
Dr Boss told the meeting, "taking all the data together, we have compelling evidence that nuclear reactions are stimulated by electrochemical processes."
在新研究中，科学家们证明了自身胰岛素生产细胞被化学性破坏的动物可在植入物的帮助下继续存活。
In the new research, scientists showed that animals whose own insulin producing cells were chemically destroyed could survive with the implant.
体育锻炼能直接影响我们的情绪，无数的研究证明，锻炼能释放内啡吠和血清素（令身体感到愉快的化学物质），能积极地影响你的心情。
Physical exercise has a direct influence on our mood, and countless studies have shown that exercise releases endorphins and serotonin (the body’s pleasure chemicals) that positively affect your mood.
尽管，事实证明将玉米秸秆化学转变为可使用的液态燃料并非易事。
It turns out, though, that it's not so easy to do the chemistry that transforms a corn stalk into a liquid fuel that works.
在信中，这些诺贝尔奖获得者——除了其中10名，其他都是物理学、化学或医学领域的获奖者——认为，转基因生物一直被证明是安全的。
In the letter, the laureates - all but 10 of whom earned their prizes in the fields of physics, chemistry or medicine - contend that GMOs have consistently been found to be safe.
“化学家们认为这是一次例外结果，因此正如CarlSagan说的那样，化学家们需要例外的证据来证明这一结果，”Benner说。
"Chemists think this is an exceptional result, and therefore chemists will, like Carl Sagan says, require exceptional evidence to prove it," Benner said.
我们已经做了多年研究，证明过分忧虑或紧张所产生的化学物质的确会损伤心肌纤维。
We've done years of work in showing that excess alarm or stress chemicals can literally burst heart muscle fibers.
诉讼书上列举了在油炸过程中形成的化学物质PhIP，PhIP在1994年就证明可以致癌。
That state listed the chemical, PhIP, which forms during the grilling process, as a known carcinogen in 1994, according to the complaint.
是否能证明化学药水分析有定期完成？
Is there an evidence that chemical analysis is performed periodically?
也可选购含有阿伏苯宗（又称Parsol 1789）或者麦素宁（最近被证明能够阻挡紫外线A）的化学防晒霜。
Or look for a chemical sunscreen with avobenzone (also known as Parsol 1789) or the recently approved Mexoryl, which absorb UVA rays.
也可选购含有阿伏苯宗（又称Parsol 1789）或者麦素宁（最近被证明能够阻挡紫外线A）的化学防晒霜。
Or look for a chemical sunscreen with avobenzone (also known as Parsol 1789) or the recently approved Mexoryl, which absorb UVA rays.
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