With scandium and yttrium, they make up the rare earth metals.

加上钪和钇，一起组成稀土金属。

Scandium-modified Al alloys are a new kind of high performance alloys.

钪改性的铝合金是一类高性能新型铝合金。

They comprise preferably indium, scandium, yttrium, rare earth metals and zirconium.

它们优选包括铟、钪、钇、稀土金属和锆。

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。

The distribution in nature, application, and extraction technology of scandium are introduced.

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。