铀的

In 1898, the Curies obtained a new element, whose radioactivity was several million times stronger than that of uranium.

1898年，居里夫妇获得了一种新元素，它的放射性比铀强几年居里夫妇获得了一种新元素，百万倍。

U-235 has the spontaneous fission rate of 0.2 - 0.3 fissions/s-kg and it is loer than Plutonium.

铀235的自发裂变率0.2-0.3裂变/秒公斤钚是loer比。

An important feature of fast reactor are: running the one hand, consumption of fissile fuel uranium or plutonium -239 -235, etc.

快堆的一个重要特点是：运行时一方面消耗裂变燃料（铀-235或钚-239等），同时又生产出裂变。。。

The resulting handwritten forgery dated July 1, 2001 talked about Saddam buying yellowcake uranium from Niger with the help of al Qaida.

由此产生的手写伪造日期2001年7月1日谈到萨达姆购买铀黄饼从尼日尔与帮助基地组织。

He was to stop making plutonium as well as suspected work on uranium.

他曾愿意停止生产钚以及进行可疑的铀浓缩活动。

He was to stop making plutonium as well as suspected work on uranium.

他停止生产钚和可疑的铀计划。

What will it take for Europe, America, Russia and China to agree on the sort of sanctions that might oblige a nose-thumbing but not yet nuclear-armed Iran to obey the council's demand to stop enriching uranium and messing with plutonium, from which its own future bombs could be made?

对欧洲，美国，俄国和中国来说，什么会使他们采取一致行动制裁伊朗，迫使蔑视别人但还不具备核能力的伊朗遵守安理会决议停止铀浓缩活动？这些活动会使伊朗在未来能制造核武器。

The rabbit osteoarthritis model were duplicated by Hulth's technique. The pathologyical changes of each group was observed with naked eyes before taking the thighbone department carilage of pulley block and the platform place of shine bone carilage, then under the light microcope and the transmission electron microcope respectively, after treating with Semer Strychni (high、middle and low dose) for two months.

按Hulth法造兔膝骨关节炎模型，用马钱子高、中、低剂量进行灌胃治疗，连续2月后取材，进行肉眼大体观察后，取股骨滑车部软骨及胫骨平台处软骨，分别于HE染色后光镜下观察和铀-铅双重染色透射电镜下观察各组的病理变化。

Fortunately there is a way to control the chain reaction of uranium atoms splitting each other.

幸运地是有一种方法去控制链式反应中铀原子的相继裂变。

The toxic effects of uranium and lead to B.

实验考察铀和铅的质量浓度为1～2000mg／L。

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。