| 单词 | atomic number 30 |
| 释义 | atomic number 30 (extremely rare) n WORD FAMILY atomic number 30 n a bluish-white lustrous metallic element; brittle at ordinary temperatures but malleable when heated; used in a wide variety of alloys and in galvanizing iron; it occurs naturally as zinc sulphide in zinc blende Syn|Hypo|Hyper Zn, zinc spelter impure zinc containing about three percent lead and other impurities (especially in the form of ingots) 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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