将正电子寿命谱仪的可工作能区分成42个小块。
The workable region for a spectrometer was divided into 42 small regions.
能窗的选择对正电子寿命谱仪的分辨率有决定性的影响。
The resolution of a positron lifetime spectrometer is mainly dependent on selection of the energy window.
研究了纳米晶体铜材料的压制工艺条件对其相对密度和显微硬度的影响，并用正电子湮没寿命谱、扫描电镜和热重分析仪对其微观结构进行了表征。
The influence of relative density and microhardness on pressing parameter of nanocrystalline Cu was studied, and its microstructure was characterized by PAS, SEM and TG.
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