相关单词近义词 rare-earth element 稀土元素, lanthanoid 镧系元素, lanthanide [化]镧系元素（原子序数..., lanthanon (=lanthanide...临近词rarebit, rare, rare earth orthoferrite, rare-earth manganites, rare-earth ion doping, rare-book restoration, Rare-earth element Ce, rare earth mine tailing, rare earth liquid laser, Rare-earth wastewater, rare-earth ferroalloy, rare felicity of phrase 返回 rare earth