其它稀土金属，钇或钪，或前述金属混合物之无机或有机化合物。
论述了稀散元素钪在自然界中的分布、应用状况及提取技术。
钪是一种稀散型元素，在自然界大多以掺杂的形式存在于其它矿物中。
1·They turned out to be the undiscovered elements scandium, gallium, technetium and germanium.
那时还没发现的元素就是钪，镓，锗和锝。
2·Then the new technology in preparation of high purity scandium metal was proposed and its purification mechanism was discussed.
然后给出了用真空蒸馏法制备高纯金属钪的新工艺，并对其提纯机制作了探讨。
3·The effects of scandium on the recrystallization of aluminium-lithium alloy are investigated by measuring the vickers hardness of the testing alloys and by observing their microstructures.
通过硬度测量和微观金相观察，研究了钪对铝锂合金再结晶过程的影响。
4·ABSTRACT Rare earth is a collective name for 17 elements including ytterbium (Yb), scandium (Sc), and lanthanide series.
提要稀土是化学元素周期表中的镧系元素和化学性质相似的钇、钪共17种元素的统称。
5·For example the NC State research teamcombined lithium, magnesium, titanium, aluminum and scandium to make ananocrystalline high-entropy alloy that has low density, but very high strength.
例如，北卡罗莱纳州立大学的科研团队利用锂、镁、钛、铝以及钪合成了一种纳米晶体高熵合金，该合金密度低，但强度却很高。