- 1、positronannihilation2、positronannihilationspectroscopy3、Thiswasconfirmedbythepositronannihilationtechnique.4、Accordingtothevaluesofthelifetimeofpositronannihilation,themodelofpositronannihilationintherare-earthpolyacetylenewasproposed.5、Thenew...
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