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- Be元素beryllium
- 元素element
- 元素的elementary
- 元素周期表periodic system of elements
- 稀土元素lanthanon
- 金屬元素tantalum
- 放射性元素radioelement
- 元素分析elementary analysis
- 多元素multielement
- 營(yíng)養元素nutritive element
- 他是鐳元素的發(fā)現者。He was the discoverer of the element radium.
- 主要元素major element
- 這兩種元素已經(jīng)化學(xué)合成。The two elements are synthesized by a chemical process.
- 合金元素addition agent
- 痕量元素trace element
- 鉑族元素platinum family element
- 補集對任意一個(gè)集合,這個(gè)集合的所有元素不共存在于它的任一子集合For a universal set, the set of all elements in the set that are not in a specified subset.
- 嬗變元素to transmute elements
- 碳元素C
- 元素分布與分配distribution and partition of the elements