查询词典 isotope

Japonica forewing and the C isotope values reflect the situation of larvae feeding period.

龟纹瓢虫前翅的C同位素值能够反映幼虫期间的取食情况，通过测算同位素值，分析结果即可了解景观格局对龟纹瓢虫幼虫期的取食影响。

With the development of determination fractionation of the stable chlorine isotope was verified, attracting many people's attention.

随着测定技术的不断发展，氯同位素的分馏效应逐渐得到证实，并引起了人们的广泛关注。

The research status of the stable isotopes in the field of environmental science and the isotope fractionation is revi.

本文介绍了稳定同位素分析方法、稳定同位素分馏的研究现状及其在环境科学研究中的最新应用进展。

Fractionation effect of coalbed gas is a phenomenon that gas composition and isotope change during the process of migration.

煤层气的分馏效应是指运移过程中气体组份和同位素值发生变化的现象。

With the development of determination technique, the fractionation of the stable chlorine isotope was verified, attracting many people＇s attention.

随着测定技术的不断发展，氯同位素的分馏效应逐渐得到证实，并引起了人们的广泛关注。

Even Francium's most stable isotope, Francium-223 only has a half-life of 22 minutes.

钫的最稳定的同位素，钫-223也只有22分钟的半衰期。

In the early 1950s American scientists produced the hydrogen bomb by inducing fusion reactions in a mixture of the hydrogen isotope s deuterium and tritium, forming a heavier helium nucleus.

1950年代，美国科学家在氢的同位素氘和氚的混合物中引导聚变反应生成较重的氦原子核，从而制造出了氢弹。

The isotope americium-241 has been prepared in kilogram quantities and is used in a variety of measuring applications that utilize its gamma radiation.

从鋂－241同位素已制备出以公斤计的鋂，并在一些仪表中已利用了鋂的γ射线。

This paper introduced the principle of using the radioactive isotope gamma rays to measure the aircraft fuel density.

测量结果表明，该方法能够达到较高的密度测量精度，具有广阔的应用前景。

"This was an unexpected find," says isotope geochemist and co-author Christopher Ballentine of the University of Manchester in the United Kingdom.

"这是个意外的发现，"英国曼彻斯特大学同位素地球化学家、研究论文的合作者克里斯托弗·巴伦坦说。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。