| 单词 | atomic number 13 |
| 释义 | atomic number 13 (extremely rare) n WORD FAMILY atomic number 13 n a silvery ductile metallic element found primarily in bauxite Syn|Hypo|Hyper Al, aluminium, aluminum alum, potash alum, potassium alum a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum alum, ammonia alum, ammonium aluma white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum metal, metallic element any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. |
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