铀的

Deuterium containing helium absorption of unsaturated uranium deuteride with different composition at varied initial pressure is studied.

研究了不同含氦量的混合气体、吸氘初始压力以及不同组成的不饱和氘化铀对铀吸氘行为的影响。

Results show that deuterium absorption quantity and velocity decrease with helium content increase.

研究了不同含氦量的混合气体、吸氘初始压力以及不同组成的不饱和氘化铀对铀吸氘行为的影响。

Uranium and fluorspar miners are exposed at ery high leels to the inert gas, radon, that is a byproduct or uranium decay.

铀和氟矿在例如其副产品或铀衰退后产生的氡之类的稀有气体中的辐射程度非常之高。

Based on theoretical calculation and in-situ test results,distribution and emissions of radioactive nuclides of uranium tailings impoundment and waste rock pile sites are analyzed in this paper.

本文从理论计算和现场实测入手，分析了铀尾矿废石场放射性核素的分布、排放量，指出氡是铀尾矿废石场中的主要核素，是公众剂量的主要贡献者。

Uranium in the ore is separated and converted into U in HCl andcomplexed with TPC and a new type thoron reagent,2(phosphino-chloro-benzenediazo)-7 (disulfo-naphthyl-diazo)-naphthalene-1, 8 diol-3, 6 disulfonic acid.

铀在 0.5—1.4 mol/l盐酸中，用氯化十四烷基吡啶作增溶剂，铀与偶氮氯膦6，8-萘二磺酸-TPC形成的三元络合物具有极高的灵敏度ε_(705nm=1.6×10~5l·mol~(-1)·cm~(-1)和较好的选择性。

A mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called ''.

一种含有氧化铀和少量镭、钍、钋、铅、氦的矿物；块状的晶质铀矿称为沥青铀矿，是主要的铀矿石。

It is difficult to study directly ore-forming hydrogeochemistry of sandstone type uranium ore in arid area, therefore, author have found out the laws of solution, precipitation and migration of uranium minerals in the groundwater using the mechanism of water rock interaction and uranium, thorium and their isotopic ratios, and have probed into the relation between uranium ore-forming hydrogeochemistry condition, hydrogeochemistry environment and uranium ore-body fixed position by studying the epigenetic hydrogeochemistry trackways in the rock.

由于干旱地区对砂岩型铀矿成矿水文地球化学研究困难，难以取水样直接研究。因而在研究方法上，作者运用水岩相互作用原理和铀钍及其同位素比值，查明地下水中铀矿物溶解、沉淀和迁移规律；通过研究岩石中留下的水文地球化学形迹，探讨铀成矿水文地球化学条件、水文地球化学环境及其与铀矿体定位的关系。

The uranium is then dissolved from the beads using a solution of ammonium carbonate and precipitated as "yellow cake", a mixture of uranium oxides.

接下来，小珠子里头的铀离子会被碳酸铵溶液溶解，其后沉淀，析出&黄饼&，即各种铀氧化物的混合物。

Enriching uranium increases the uranium 235 concentration in the material, which increases the amount of fission that occurs in a given amount of uranium.

浓缩铀提高了铀235的浓度，从而增加了一定数量铀中发生的裂变量。

The tendency of uranium content in the main Irtysh River is increasing from upstream to the downstream.

可可托海稀有多金属矿废水中仅由铀和钍产生的α射线比活度之和就已经超过了国家污水综合排放标准（其中铀产生的占99％以上）。

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。