放射性元素

In 1898 Marie Curie and her husband discovered two other naturally occurring, strongly radioactive elements, radium and polonium .

1898年居里夫人和她的丈夫发现了另外两种天然存在的强放射性元素，镭和钋。

In 1898 Marie Curie and her husband discover ed two other naturally occurring, strongly radioactive elements, radium and polonium.

1898年居里夫人和她的丈夫发现了另外两种天然存在的强放射性元素，镭和钋。

In July 1898, Madame Curie and her husband got a great success that they discovered the radioactive element, polonium, which Marie named after Poland.

1898年7月，居里夫人和她的丈夫取得了一项极大的成就-----他们发现了一种放射性元素，玛丽以波兰这一名称的字头命名它为钋。

The immediate product of the radioactive decay of an element.

一种碱金属属的放射性元素，是锕瓦解的产物。

Geological dates are usually obtained by using the rates of decay of various radioactive elements found in minerals.

人们通常用矿物中所发现的各种放射性元素的衰变率来计算地质年代。

And sure enough, only a few months later the decay of the atom nucleus in the radioactive element cobalt 60 revealed that it did not follow the principles of mirror symmetry.

几个月以后，利用放射性元素Co60的核衰变所做的实验表明镜像对称性不成立。

A radioactive element of the actinide series; found in uranium ores.

锕类的放射性元素，见于铀矿中。

A series of 15 radioactive elements with increasing atomic numbers from ''.

15个从''。'锕'。''到铹的原子量递增的放射性元素。

Volunteers are given tiny traces of a radioactively labelled drug—too small to harm them, and typically just one-hundredth of the estimated full dose—in a drink.

志愿者饮用了微量的放射性元素标记的药物----剂量小到没有伤害，只有足量的百分之一。

Main types of indoor air pollution for formaldehyde, benzene caused by chemical pollution, biological pollution caused by bacteria and viruses radioelement and dust caused by the physical pollution.

室内空气污染类型主要为甲醛、苯引起的化学污染、由细菌病毒引起的生物污染及由放射性元素和尘埃引起的物理污染。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了