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Meaning of 稀有元素

Lookup via: Pinyin | Radicals
yǒu yuán
trace element (nutrition)
Example Sentences
1
A rare element was found last year.
2
Uranium is very valuable because it is a rare element.
3
The product can be used for glass frosting or extracting rare elements and used as a preservative or a mordant.
4
One method which can be used in analyzing rare element Nb in the presence of Ta and other impurities is proposed in the paper.
5
A coarse-grained granite, sometimes rich in rare elements such as uranium, tungsten, and tantalum.