radioactive rare metal
英 [ˌreɪdiəʊˈæktɪv reə(r) ˈmetl]
美 [ˌreɪdioʊˈæktɪv rer ˈmetl]
网络 放射性稀有金属
双语例句
- The examination of radioactive isotopic technique showed that the rare earth elements increased the diffusion rate of chromium and the Cr_2O_3 protective film formed in steel adding RE metal.
用同位素方法试验表明，稀土提高了钢中铬的扩散速度，促进了Cr2O3保护膜的形成。