查询词典 uranium

Examing neutron integral flux is an important part of fission track technique, and determining neutron integral flux by using uranium standard glass is recommended as a mainmethod by international Fission Track Standardization Group for age-dating.

监测中子积分通量是裂变径迹技术的重要组成部分。铀玻璃监测中子积分通量是国际裂变径迹定年标准化工作组推荐的重要方法之一，铀玻璃测定法还普遍用于测定样品中的铀含量及其空间分布。

The succession of uranium to potassium ratio anomalies is at about two-mile.

铀钾比值异常延伸约达2英里。

The influences of dead time of detector and the mass bias on the precision of determination of Uranium isotope ratio studied.

研究了检测器死时间和质量偏倚对铀同位素比测量的影响，对比了三种检测器死时间和质量偏倚校正方法。

An inductively coupled plasma-atomic emission spectrometric method for the determination of trace thorium in uranium dioxide was established.

采用717型阴离子交换树脂分离试液中钍，建立了电感耦合等离子体原子发射光谱法测定二氧化铀中痕量钍的新方法。

In the sub-critical fast reactor core, the inner 7 subassemblies of CDFR were replaced with lead target subassembly, the control rod subassemblies were replaced with the subassemblies which contain MA and depleted uranium, and the radial blanket of CDFR were replaced with reflect subassembly.

次临界快堆堆芯在示范快堆堆芯基础上去掉中间7盒组件放置铅靶组件，控制棒组件用含贫铀和次锕系元素的组件代替，转换区组件用反射层组件代替。

Preparation of the adsorbents is of most essential in uranium extraction from sea-water.

吸附剂制备是海水提铀的关键。

The system has been used to geological mapping and uranium deposit exploration in vegetable-covered granite area, volcanic rock area and sediment basin.

利用该系统在植被覆盖的花岗岩、火山岩和沉积盆地地区进行了地质填图和铀矿找矿应用，取得了很好的应用效果。

The effects of pH value, redox potential, ferrous ions, total iron and uranium concentration were examine...

结果表明，在沥青铀矿石的细菌浸出中，细菌的作用以间接作用为主，即细菌把还原态的硫或单质硫及Fe2+氧化成Fe2(SO4)3。

She explains that the Four Corners area is particularly sacred because it literally holds Mother Earth''s internal organs -- coal and uranium which the Bureau of Indian Affairs has allowed the Peabody Coal Mine to mine.

她解释第四角落地方神性独特，因为它逐个保存了大地的心脏—印第安事物所准许Peabody煤矿开采的煤和铀矿。

In this case the geologists drilled into the stalagmites and estimated their age from the way that uranium decays into an isotope of thorium.

地质学家在石笋上钻孔，使用铀衰变成钍的同位素的方法确定它们的年龄。

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。