Scientists say the compound is likely to cause cancer but have no hard scientific proof.
科学家们称这种化合物可能致癌，但是并没有确凿的科学依据。
L There is no scientific proof that any ET life form has ever visited the Earth.
l还没有任何科学证据可以证明外星生命曾经访问过地球。
Now, she says, there is scientific proof that the benefits are worth the effort of seeking these programs out.
她说，现在，有科学证据证明，这些好处值得人们付出努力去寻求这些方案。
If we cannot make convincing cases for them without "scientific proof" that they make people happy, we are morally adrift.
如果，在没有“科学证据”的情况下，我们就不能令人信服地证明这些因素使人们幸福，那么我们在道德上就陷于不确定状态。
But definitive scientific proof is tough to come by.
但是很难拿出明确的科学证据。
Reason for listing: 2012 doomsday itself is a rumor without any scientific proof.
上榜理由：2012末日论本身就是没有科学根据的传言。
Now, there is scientific proof that they do in fact understand what you are feeling.
现在，有科学证据证明他们其实明白你的感受。
There is no scientific proof that drinking alcoholic beverages can replace these conventional measures.
没有证据显示饮用酒精饮料能够取代这些常规的措施。
Conclusion: the result provided solid and scientific proof for the further exploitation and utilization of A. Borealis.
结论：研究结果为其进一步开发和利用北极蒿奠定基础。
If we cannot make convincing cases for them without scientific proof that they make people happy, we are morally adrift.
如果，在没有科学证据的情况下，我们就不能令人信服地证明这些因素使人们幸福，那么我们在道德上就陷于不确定状态。
The dynamic electrocardiograph is convenient to use, and can provide scientific proof for accurately judging electrocardiograms.
本发明使用方便，能够为准确判别心电图提供科学依据。
Just in time for the holiday season, scientific proof that it's not the gift that counts-it's the smile on the friend giving it.
对于即将到来的假日季节来说，这个科学证明很是时候——礼物并不重要，重要的是你朋友赠送礼物时脸上的笑容。
Objective To explore the anxiety state and its influences on medical graduates, to give scientific proof for mental health education.
目的对医学本、专科毕业生毕业前夕的焦虑状况及相关因素进行调查分析，为毕业生心理健康教育提供科学依据。
At present it is generally accepted, although more as a self-evident statement than on the base of a closely-reasoned scientific proof.
目前，这个观点已被普遍接受，虽然它是不言而喻的，并不是根据科学严密推理而证明的。
I know that some suspect aspartame, the sweetener used in the drink, has links to depression and cancer. But there's no concrete scientific proof.
我知道有些人怀疑阿斯巴甜——饮料中的甜味剂——与抑郁和癌症有关，但还没有具体的科学依据。
At present this idea is generally accepted, although more as a self-evident statement than on the base of a closely-reasoned scientific proof.
目前，这个观点已被普遍接受，虽然它是不言而喻的，并不是根据严密的科学推理而证明的。
Australian researchers said Thursday they had found no scientific proof that hi-tech running shoes improve athletic performance or limit injury.
澳大利亚研究人员于上周四称，他们并未发现有关高科技跑鞋能提高运动成绩或减少受伤的科学依据。
Human insulin was introduced into the market without scientific proof of advantage over existing purified animal insulins, especially porcine insulin.
人类胰岛素被引进市场，没有经过科学证明其比现存的纯化动物胰岛素有好处，尤其是猪胰岛素。
Objective to evaluate efficacy and acute toxicity of rhinitis capsules so as to provide a scientific proof of modern pharmacology and security for clinical work.
目的检测鼻炎胶囊的有效性和急性毒性反应，为临床提供现代药理学及安全用药的科学依据。
Further research about the circulating cancer cells can help us to understand the mechanism of metastasis and offer the scientific proof against anti-metastasis.
深入研究循环肿瘤细胞有助于对肿瘤转移机制的了解，可为抗转移治疗提供依据。
A few months ago, I searched for real scientific proof to see whether it works and although there is little study, wheatgrass itself has proven itself with many health benefits.
几个月前，我搜寻了真实的科学依据来证实麦草是否真有如此神效。虽然得到的研究结果很少，但麦草已证明了它对健康有很多好处。
Accurate cognizance of the fact of a case is the precondition of just law enforcement and scientific proof is the basic approach of the accurate cognizance of the fact of a case.
准确认定案件事实是公正执法的前提条件，科学证明是准确认定案件事实的基本途径。
Objective: to research the chemical compositions of alcohol extraction from Psidium Guajava L. leaf, and to provide the scientific proof for the exploitation of this herbal resource.
目的：研究水番桃叶乙醇提取物的化学成分，为开发该药用资源提供科学依据。
Objective: to research the chemical compositions of alcohol extraction from Psidium Guajava L. leaf, and to provide the scientific proof for the exploitation of this herbal resource.
目的：研究水番桃叶乙醇提取物的化学成分，为开发该药用资源提供科学依据。
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