铀

Some problems are discussed in this paper which is"spale-restriction","time-restric- tion"and"cross-section-restriction on the transuranium s limit".

本文讨论了超铀元素存在的&空间限制&、&时间限制&和&生成截面限制&。

Some problems relating to chemical characters of transuranium elements, pretreatment of samples,methods of separation and purification,selection of chemical yield tracer,and various measurement technique are discussed.

有关超铀元素的化学特性、样品的前处理、分离和提纯方法、化学产额示踪剂的选择以及各种测量技术等一些问题也进行了讨论。

A member of the actinide series of transition elements, it is the most important transuranium element because of its use in certain types of nuclear reactors and in nuclear weapons.

锕系过渡元素及其化合物，是最重要的超铀元素，用作核反应堆燃料和核子武器装料。

A member of the actinide series of transition elements, it is the most important transuranium element because of its use in certain types of nuclear reactors and in nuclear weapon s.

锕系过渡元素及其化合物，是最重要的超铀元素，用作核反应堆燃料和核子武器装料。

The ICP-MS method has a potential for on-line chemical analysis of aerosol particles containing refractory metal and transuranium element.

ICP-MS在环境气溶胶在线快速分析，尤其是气溶胶粒子中难熔金属和超铀元素超痕量在线环境监测方面具有潜在的应用前景。

The naming of the transuranium elements has been fraught with controversy regarding which laboratory first made the discovery and should propose the name and whether elements should be named for living persons.

超铀元素的命名充满着争议，究竟是哪个实验室首先发现而应该命名，该不该以一个活着的人的名字为元素命名等。

Transuranium Elements ; Radiochemical Analyses ; Environment

超铀元素；放射化学分析；环境

Beijing Man Site ; Travertin layer ; U-series age

北京猿人遗址；钙板；铀系年代

They reported the abnormal uranium content of waters issuing from tuffaceous rocks.

他们发现，从凝灰岩中流出的水中铀含量反常。

According to this plan, south Africa provides Xiang Yilang a kind of uranous raw material that is called yellow cake.

根据这项方案，南非将向伊朗提供一种叫做黄饼的铀原料。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。