columbite

常見例句

• We have interest to buy tantalite, Ta2O5, coltan, columbite in Uganda and East African region.
  我們有意在烏干達(dá)和東非地區(qū)購(gòu)買鉭鐵礦、五氧化二鉭、鉭礦石、鈳鐵礦。
• On the basis of detailed studies on columbite from the Suzhou granite, tantalite has been found for the first time in this granite.
  本文在研究蘇州花崗巖中鈮鐵礦的基礎(chǔ)上,首次在該地區(qū)發(fā)現(xiàn)了鉭鐵礦。
• The results showed that dielectric constant decreased ,the loss increased because of pyrochlore phase and it was pretented effectively by columbite precursor routes.
  研究發(fā)現(xiàn),焦綠石相的存在造成了低介電常數(shù)、高損耗;
• at one time, Nigeria was the world's largest exporter of columbite.
  尼一度曾是世界上最大的鈳鐵礦出口國(guó)。
• Keywords atomic absorption spectrometry;CaO;columbite;steel cinder;
  原子吸收法;氧化鈣;鈮精礦;冶煉爐渣;
• Keywords Piezoelectric ceramics Pyrochlore Columbite precursor;
  壓電陶瓷;焦綠石;預(yù)合成鈮鐵礦;
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