annihilation spectrum

基本解釋

By the positron annihilation life spectrum (PALS) technique, the free volumes of chitosan and its N alkyl derivatives membranes were measured.
用正電子湮滅壽命譜（PALS）法，研究了N-烷基化殼聚糖膜的自由躰積。
For seeking after background spectrum, an iterative technique called gradual annihilation method is used in the module for analysis of differential spectrum.
在微分譜分析模塊中採(cǎi)用了疊代技術(shù)求全譜本底，稱(chēng)之爲(wèi)逐次淹沒(méi)法。
The measurements of positron annihilation lifetime spectrum for chlorophyll in cyclohexane (77K) and in alcohol (296K) were carried out under illumination at different light intensity.
測(cè)量了在不同光強(qiáng)下葉綠素環(huán)已烷溶液（77K）和酒精溶液（296K）的正電子湮沒(méi)壽命譜。