目前，有可靠的科学证据表明，澳大利亚最早的岩石表面艺术创作可追溯到3万至5万年前。
Currently, reliable scientific evidence dates the earliest creation of art on rock surfaces in Australia to somewhere between 30,000 and 50,000 years ago.
19世纪和20世纪初，人们确信历史遗迹可以为过去提供可靠证明，而在当时，科学被视为客观的和毫无价值的。
The conviction that historical relics provide infallible testimony about the past is rooted in the nineteenth and early twentieth centuries, when science was regarded as objective and value free.
好的、可靠的科学依赖于假设、实验和合理的方法。
Good, sound science depends on hypotheses, experiments and reasoned methodologies.
我们希望我们的信念是准确的——真切反映世界事实——并且我们知道，科学是得到准确性的一个可靠向导。
We want our beliefs to be accurate-to align with what is really true about the world-and we know that science is a reliable guide to accuracy.
事实上近年来在科学上的公共和私人花费一直稳步增长。到2008年(最近的可获得可靠数据的年份)止的五年内，该数字增加了15%。
And in recent years both public and private spending on science have risen steadily in real terms, increasing by 15% in the five years to 2008, the most recent year for which data are available.
负责该研究的加州大学洛杉矶分校的埃里克•维莱恩说：“长期以来，科学家一直在寻找一种可靠的年龄标志，我们为此提供了一个答案。”
Lead researcher Eric Vilain, from the University of California, Los Angeles, said: "Our approach supplies one answer to the enduring quest for reliable markers of ageing."
此项研究由美国国家科学基金会拨款，旨在提高航天器在高层大气中运行时的安全性和可靠性。
The research, federally funded by the National Science Foundation, could improve the safety and reliability of spacecraft that operate in the upper atmosphere.
因此科学家寻求一种可靠的生理方式测量疼痛。他们最终很可能会成功。
So scientists have searched for a reliable way to measure pain physiologically. And they may finally have one.
在任何科学领域，少量的样本会带来不可靠的结果。
In any field of science, small samples lead to spurious results.
维尔·莫特最后说，这些干细胞用于治疗还将有一段时间，因为科学家们尚未找到将干细胞培育成不同人体组织的一个可靠方法。
It would be some time before the cells could be used in patients, Wilmut said, because scientists have yet to find reliable ways of making different tissues from stem cells.
如果他们的信息合法可靠，就应该接受世界顶尖专家的科学检验。
If this information is legitimate, it should be examined scientifically by the world's leading experts.
但是对我而言，最最重要的一点，科学是唯一的以一定可靠度来确定真理的哲学建构。
But for me the most important, by far, is that it's the only philosophical construct we have to determine truth with any degree of reliablity.
科学家们称他们的计算证明了该制动系统的可靠性良好，能适用于飞机、火车和工厂的控制系统。
The scientists say their calculations have proved the brake system's reliability is so good it could be used to control systems in aircraft, trains and factories.
动物实验成本高昂，而且不一定有价值，科学家更愿意采用便宜可靠的替代方法。
Animal testing is expensive and can be of dubious value, and scientists would prefer cheaper and more reliable alternatives.
研究社交网络的科学家们一直以来受阻于一件事：他们的受试者并非常常都是可靠的报告者。
Scientists who study social networks have long been hampered by one thing: their subjects are not always reliable reporters.
科学家更乐于用实验室里的动物们的宝宝来做实验，因为对这些动物用药史的了解使得它们的实验数据更可靠。
Scientists prefer to work with the offspring of animals raised in laboratories because knowledge of the creatures’ complete medical history makes them more dependable.
“当然这种估计带有很大的不确定性，但这是我见过的最可靠的预测。”古德斯坦对《生活科学》说。
"Of course there are large uncertainties in estimates of this kind, but this one is as good as any I've seen," Goodstein told LiveScience.
为了让细胞“重编程”在细胞疗法中变得足够安全，科学家们必须寻找一种高效且可靠的办法来激活它。
For reprogramming to be safe enough to use in cell therapy, researchers must find an efficient, reliable way to trigger it.
科学技术的可靠性远不如人类所预计的。
食品科学家和蜂蜜专家说花粉是确定花粉来源的可靠方法。
Food scientists and honey specialists say pollen is the only foolproof fingerprint to a honey's source.
食品科学家和蜂蜜专家说花粉是确定花粉来源的可靠方法。
Food scientists and honey specialists say pollen is the only foolproof fingerprint to a honey's source.
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