英语释义

• 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

片语

pitchblende minerals沥青铀矿

pitchblende group沥青铀矿类矿物

pitchblende spherocrystal沥青铀矿球晶

nasturan沥青铀矿

pitchblende E沥青铀矿

uraninite[矿物] 沥青铀矿

associated scheelite and pitchblende白钨矿与沥青铀矿共生

acicular pitchblende针状沥青铀矿

英汉例句

• uranium mineral is pitchblende which was formed in lower proterozoic.

  铀矿物主要为沥青铀矿，形成于早元古代。

• 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。

• particularly part of pitchblende samples with colloidal structure features have the same physical and optical features as uraninite.

  尤其有一部分具有胶状构造外表特征的沥青铀矿样品的各项参数均与晶质铀矿一样。

• 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。

• the initial lead in pitchblende belongs to radioactive origin from crust.

  沥青铀矿中的初始铅属地壳放射成因。

• the principal uranium mineral in the deposits of primary subtype is uraninite, but in reworked subtype are pitchblende and relict uraninite.

  原生型矿床中主要铀矿物是晶质铀矿，改造型矿床中的主要铀矿物是沥青铀矿和残余的晶质铀矿。

• the distribution patterns of rare earth elements of pitchblende and surrounding rocks in three types of uranium deposits have been studied.

  该文研究了桂东北地区三种不同类型铀矿床中沥青铀矿及其围巖的稀土元素分布模式。

• the radiometric age of pitchblende is 109—108 m.

  沥青铀矿的同位素年龄为108—109百万年。

• the pitchblende is the chief industrial mineral.

  沥青轴矿是主要工业矿物。

• this led her to deduce that there were other substances within pitchblende that had properties of radioactivity.

  于是玛丽推断出，在沥青铀矿中可能还有其他具有放射性的物质。