This skeleton has been dated by carbon 14 in the mid decades of the14th century.

这具骨架是在14世纪中期由碳-14（放射性碳）。

The bat judges distances by a kind of echo-location.

蝙蝠用一种回声法来判断距离。

It has been dated, using " uranium-lead" geochronology dating techniques.

用“铀铅”地质年代学技术了它年代。

Scientists in Britain have completed the world's largest gene sequencing project in health care, which is hoped will revolutionize medical treatment for people with cancer and rare diseases.

英国科学家完成了世界上最大卫生保健领域基因序列项目。有希望这个项目能为癌症和稀有疾病患者带来变革性医学治疗。

Efforts to date these bone pieces resulted in problems, she added.

她补充说，对这些骨头碎片进行年代努力导致了一些问题。

The scout is the one going out, mapping the terrain, identifying potential obstacles.

侦察员是那些走营地，地形、识别可能障。

Fifty years ago, British inventors made and marketed the first electronic breathalyzer.

50年前，英国发明家创造并售了第一台电子“体内酒量器”。

At noon the next day, a man mounted the bridge to ascertain the vessel's position.

第二天是12月13号，中午，只见一个走上舰桥方位。

Well, I know we start by discussing the shortcomings of carbon dating.

我知道我们一开始 是讨论碳年代法缺点。

The diagnosis of hyperaldosteronism is mainly done by measuring levels of renin and aldosterone.

醛固酮增多症诊断主要通过肾素与醛固酮水平来完成。

Tetanus toxin can also be found in the serum using a bioassay.

生物法可在血清中发现破伤风毒素。

After that, we'll pass it through the spectrometer to measure how much glucose is present.

之后我们再使用分光光度计来其中含有多少葡萄糖。

So we learned about the test you take to get your EQ.

所以我们了解了你用来情商试。

I sent my dosimetrists into the reactor building.

我让我员进入反应堆厂房了。

Thompson said in a statement that U.S. officials must ensure we are not expanding the use of biometrics at the expense of the privacy of the American public.

汤普森在声明中说，美国官员" 必须确保我们在扩大生物学应用范围时，没有牺牲美国公民隐私。"

There's also the minor problem, that coastlines tend to change all the time with erosion, every time a wave crashes on a beach, its shape is changed by a little and that is really hard to accurately pin down.

还有一个小问题，海岸线会随着侵蚀作用而不断变化，每当海浪撞击海滩时，它形状都会发生一点变化，这很难准确地。

The researchers sought to measure the effect of immigration on the native-born in 20 rich countries, taking into account differences in skills between immigrants and natives, imperfect labor markets and the size of welfare state in each country.

该研究中，研究员们设法了 20 个国家中移民对本国居民影响，考虑到因素包括了移民与本国居民技能差异、劳动力市场尚不完善现状、各国福利制度规模等等。

Radiocarbon dating has shown that the No 3 and No 4 pits, at 3,000 to 3,200 years old, go back to the late Shang Dynasty (16th century-11th century BC) , Xu said.

据徐斐宏介绍，根据放射性碳年代显示，3号坑和4号坑距今已有3000到3200年历史，可以追溯到商朝晚期 (公元前16世纪至11世纪)。

By then we had fared nearly 13,000 leagues from our starting point in the Pacific high seas. Our position fix placed us in latitude 45 degrees 37' south and longitude 37 degrees 53' west.

我们从太平洋远洋中发以来，差不多已经走了一百三千里。方位是我们在南纬45度37分，西经37度53分。

Rather, they cover isolated forms of the genes, which have been identified, snipped from the genome and chemically modified to make them analysable in a laboratory.

恰恰相反，专利涉及是这些基因分离基因，已被分离基因是从基因组中剪切来经化学方法修饰后可用于实验室实验分析一类基因。