1.
Uranium is very valuable because it is a rare element.
铀很贵重，因为它是稀有元素。
2.
The Research Progress of Polyoxometalates Containing Rare Metal Elements
含稀有元素的多金属氧酸盐的研究进展
3.
A coarse - grained granite, sometimes rich in rare elements such as uranium, tungsten, and tantalum.
花岗伟晶岩一种有时富含铀、钨和钽等稀有元素的粗纹理花岗岩
4.
a form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements.
一种火成岩，由富含稀有元素的岩浆结晶而成的极粗的花岗岩构成。
5.
The Ecological Effect of Rare Earth Elements and Available State of Rare Earth Elements in Soil;
稀土元素的生态效应及土壤中稀土有效态的研究
6.
a rare polyvalent metallic element of the platinum group; it is found associated with platinum.
一种稀有的多价铂系金属元素，与铂共生。
7.
rare earth vapor laser
稀土元素蒸气激光器
8.
lanthanid(e) series
【化】镧系(即稀土元素)
9.
rare gas excimer laser
稀有气体激元激光器
10.
DETERMINATION OF TRACE RE ELEMENTS BY ISOTOPE DILUTION MASS SPECTROMETRY (IDMS)
用同位素稀释质谱法测定微量稀土元素
11.
Some typical cast ferroalloys and nonferroalloys containing rare earth elements were described.
并介绍了一些典型的含稀土元素的铸铁合金和有色铸造合金。
12.
a rare soft silvery metallic element; occurs in small quantities in sphalerite.
一种稀有、软质的银色金属元素，在闪锌矿中少量存在。
13.
the rare-earth elements with atomic numbers 57 through 71; having properties similar to lanthanum.
原子量为从57到71的稀土元素；具有与镧类似的性质。
14.
a separate group of related lanthanides, including terbium, europium, gadolinium, and sometimes dysprosium.
单独一类互相关联的稀土元素，包括铽、铕、钆、有时含镝。
15.
a ductile gray metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group.
一种有延展性的灰色金属元素，用作打火石，稀土属元素中含量最丰富的一种。
16.
The Act for Coloring of Rare Element in the Precious Glass
稀土元素在宝石玻璃中的着色作用
17.
Rare earth elements can also adjust the growth process of plant.
稀土元素也可调节植物的生长过程。
18.
a bivalent and trivalent metallic element of the rare earth group.
稀土属二价和三价金属元素。