pitchblende

pitchblende

1. 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 pitchblende which is the chief uranium ore.

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。

2. 7. a gummy orange mixture of uranium oxides and silicates occurring naturally in the hydration and oxidation of pitchblende.

一种橙色粘性的铀氧化物和硅酸盐的混和物，由沥青油矿在水合作用和氧化作用下天然形成。

3. But an unexpected fact was noted: certain minerals (pitchblende, chalcolite, autunite) had a greater activity than might be expected on the basis of their uranium or thorium content.

但是一个意外的事实引起了我的注意：某些矿物质(沥青铀矿物质、铜铀云母或钙铀云母)的活性比根据其铀或针含量所判断的要高。

4. But an unexpected fact was noted: certain minerals( pitchblende, chalcolite, autunite) had a greater activity than might be expected on the basis of their uranium or thorium content.

但是一个意外的事实引起了我的注意：某些矿物质(青铀矿物质、铀云母或钙铀云母)活性比根据其铀或针含量所判断的要高。

5. uraninite in massive form is called pitchblende which is the chief uranium ore.

块状的晶质铀矿称为沥青铀矿，是主要的铀矿石。

6. We found that pitchblende contains at least two radioactive materials, one of which, accompanying bismuth, has been given the name polonium, while the other, paired with barium, has been called radium.

我们发现沥青铀矿物中至少含有两种放射性物质：与铋伴生的命名为钋，与钡伴生的命名为镭。

7. Keywords water-rock interaction;tetrad effect;isotope;granite;calcite;tourmalinite;pitchblende;Zhuguang-Xiazhuang uranium ore-concentrated district;

水-岩作用;四分组效应;同位素;花岗岩;方解石;电气石;沥青铀矿;诸广-下庄铀矿集区;

8. Pitchblende and chalcolite are much more radioactive than uranium itself.

沥清铀矿和铜铀云母比纯铀的放射性强得多。

9. Keywords Pitchblende;Oxygen isotope;Method of bromine pentafluorine;

沥青铀矿;氧同位素;五氟化溴;

10. Pitchblende is the most important industrial uranium mineral in China.

沥青铀矿是我国最重要的工业铀矿物。

11. Pitchblende is the only primary uranium mineral, which is associated with quartz, fluorite, hematite and pyrite.

沥青铀矿是矿石中唯一的原生铀矿物,其共生矿物主要有石英、萤石、赤铁矿和黄铁矿。

12. The Improvement of Age Determination Technique for Pitchblende

沥青铀矿的年龄测定方法改进

13. Marie began working with pitchblende because it contained uranium, but was cheaper to buy than pure uranium.

玛丽开始用沥青铀矿做试验，因为沥青铀矿含着铀，但是要比纯铀便宜得多。

14. Keywords Sawapuqi uranium deposit;pitch;pitchblende;environment;

萨瓦莆齐铀矿床;沥青;沥青铀矿;环境;

15. Keywords uranium deposit;coffinite;pitchblende;rhythmic zone;

铀矿床;铀石;沥青铀矿;韵律环带;

16. Keywords uranium tungsten ore deposit;associated scheelite and pitchblende;dispersion mierograined scheelite;thermal groundwater and hot brine;

铀钨矿床;白钨矿与沥青铀矿共生;分散状微粒白钨矿;地下热水与热卤水;

17. Keywords Cu U Au mineralization tectonic breccia pitchblende;

铜铀金矿化;构造角砾岩;沥青铀矿;