铀

Yellow-cake uranium could be nosed as far away as Niger, and Saddam Hussein's connections to al-Qaeda were as odorous as a Texas feedlot.

即使远在尼日尔，他们也能嗅到铀精矿的气息；而萨达姆侯塞因与基地组织的关系更是如德州牧场的浓烈气味一样刺鼻。

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。

The reactor core consisted of pellets ofuranium fuel inside bricks made of graphite, which served as a "moderator",reducing the speed of the neutrons in order to maximise their ability to causefurther fissions.

反应堆的核心包括：含有球状铀燃料的石墨砖，起到&调节器&的作用，可以减少中子的速度以最大化它们引发进一步裂变的能力。

There it is transformed into uranium hexafluoride, which in turn is sent to gas diffusion plant to be enriched.

在那里它被转化为铀的六氟化物，再被送进气体扩散工厂作富集处理。

Though the amount of gold in the seawater and bittern chemical resources is much low, the mechanism of extraction of gold from chloride solution by BODMAC was investigated here in order to achieve some theoretical fundamentals for extraction of gold from ocean resources.

虽然海水和苦卤中金的含量很低，我们在研究用BODMAC从苦卤中提铀的同时，也考察了BODMAC从氯化物中萃取金的机理。

They are supergene minerals occurring in oxidized zones of uranium deposits and assuming green-yellow colors. This kind of minerals can be used as one of the mineral indicators in search for uranium deposits. They are mainly composed of ~(3-) and ~(2+), in which As and U are known as poisonous and harmful elements causing environmental pollution.

铀酰砷酸盐矿物是主要产出于铀矿床氧化带中比较特征的黄绿色表生矿物，是寻找原生铀矿床的重要矿物学标志，化学组成主要是[AsO4]^3-和[UO2]^2 ，其中As和U均是对环境造成极大危害的有毒或放射性有害元素。

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 permeability of ore mass has a great influence on the leaching period of heap leaching and the leaching efficiency,hence the uranium ore s with high content of clay is difficult to acidic heap leaching.

矿堆的低渗透性能是局限矿石浸出周期及金属浸出率的最主要因素之一，因此，长期以来，高含泥量的铀矿石一直是酸法堆浸提铀技术的应用禁区。

As to why Mars might be so cold,"perhaps it was robbed of its fair share of heat-producing elements, such as uranium and thorium, when it was first born," Phillips said.

& 至于火星为何这么冷，菲利普斯说：&也许火星一诞生就失去了那些应有的产生热量的元素，如：铀和钍。

On the basis of these works, the range of components, and the craft of heat-treatment and working are provided.

在此基础上，提出获得高强度、高韧性贫铀合金的成分范围和相应的加工及热处理工艺。

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。