1.a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite.
稀土属金属元素,于激光中,见于磷灰石、石、磷矿和硅铍矿中。
1.a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite.
稀土属金属元素,于激光中,见于磷灰石、石、磷矿和硅铍矿中。
A stepwise carbochlorination-chemical vapor transport(SC-CVT) technique is proposed for separation of thorium from mixed bastnaesite-monazite concentrate.
以氟碳铈矿-石混合稀土矿为研究对象,采分步选择性碳热氯化-化学气相传输反应(SC-CVT),实现钍与其它稀土元素的分离。
a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands.
一种软质、银白色、放射性四价金属元素,同位素反应能源,见于钍矿和石沙中。
Neodymium is a bright, silvery rare-earth metal element, found in monazite and bastnaesite and used for coloring glass and for doping some glass lasers.
1据查,钕是“一种亮银色的稀土金属元素,见于单在石和氟碳锑矿中存在,于给玻璃染色和给一些玻光器上色。
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