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美国进口关税
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重水（氘氧化物）
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Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined: · Heavy water (Deuterium oxide)
硼-10富集的硼及其化合物
Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined: · Boron enriched in boron-10 and its compounds
锂-6富集的锂及其化合物
Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined: · Lithium enriched in lithium-6 and its compounds
氦-3
Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined: · Helium-3
Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined: — 其他
Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined: · Other
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