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第Ⅰ主族元素
the group ia elements
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主族元素
main element main group element the grouia elements
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12族元素
group 12 element
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铂族元素
platinum family element (含钙、锇、铑、铱、钯、铂六个元素) ◇铂族元素化合物 platinum family compound; 铂族元素矿床 platinum-g...
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氮族元素
element of the nitrogen group elements of the nitrogen group nitrogen grouelement nit...
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第八族元素
eight-group element
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第三族元素
triels
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第四族元素
tetrels
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第五族元素
pentels
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钒族元素
vanadium family elements
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副族元素
subgroup b element subgroup element
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付族元素
subgroup element
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铬族元素
chromium family elements
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氦族元素
helium family element
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碱土族元素
alkaline earth element
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零族元素
group zero elements
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硫属 硫族元素
chalcogen
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硫族元素
chalcogen sulfur family element
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