查询词典 radium

Some mistakes,such as Madam Curie discovered radium,turned out to have great scientific potential

这些错误，例如居里夫人发现的镭，被发现具有巨大的科学研究潜力

It was what they had been working so hard to find: pure radium.

这句话中"had been working"是什么时态？具体用法是什么？

The discovery of X-ray by Rontgen (1895) and radium by Curie (1898) not only contributed greatly in physics and chemistry, but also opened a new era in medicine.

物理学方面则由 Rontgen 在 1895 年 11 月 8 日发现 X 光及 Curie 发现镭(1898)之后，使医学进入全新的另一个领域。

Contaminant cations such as calcium,magnesium,barium,strontium,and radium and anions such as fluoride ,nitrate,fulvates,humates,arsenate,selenate,chromate ,and anioic complexs of uranium can be removed from water by using ion exchange or adsoption onto activiated alumina.

具有污染能力的像Ca，Mg，Ba，Sr，Ra的阳离子，和像氟化物，硝化物，黄酸物，腐质酸物，砷酸盐，硒酸盐和铬酸盐的负离子以及像铀一样的负离子复合物可以通过离子交换和离子吸附从水中排除。

It is sung at Mass from Whitsunday until the following Saturday inclusively, and comprises ten stanzas of the form: Veni, Sancte Spiritus, Et emitte coelitus Lucis tuae radium.

一些hymnologists绑定两个这样的stanzas之一，无疑，以完成计划的有节奏的第三条生产线，如在"劳达锡永"和"圣母材料"。

It was the discovery of… It was the discovery of radium that made the Curies win the Nobel Prize.

是镭的发现使居里夫妇得到了诺贝尔奖金。

The matter that the Curies had discovered was radium. It looked like ordinary salt, but was one million times more radioactive than uranium.

居里夫妇所发现的物质就是镭，看起来它就像普通的食盐一样，而它的放射性却铀要大一百万倍。

The matter that the Curies had discovered was radium.

居里夫妇发现的物质正是镭。

This paper discusses the thermal stress change with time, study on the relationship between stress and radium. It provides a theoretical reference to study on the decrease the fatigue damage of the reactor under thermal punch.

本文探讨了热应力随时间的变化及热应力与半径的关系，从而为研究反应器减小热冲击损伤提供了理论参考。

This paper investigated the stress response while the reactor endures thermal shock, and bring out the basic thermal-elastic mechanics equations and their solutions. It also discussed the thermal stress changes with time, study on the relationship between stress and radium. It provides theoretical references for reducing reactors'damage from thermal shock.

论文研究了反应器承受热冲击作用的应力响应，给出了热弹性力学基本方程及方程解，探讨了热应力随时间的变化及当量应力与半径的关系，从而为研究反应器减小热冲击损伤提供了理论参考。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。