The antimuon decay also conserves the total light and heavy lepton numbers.在反μ子衰变中,总轻轻子数和总重轻子数也是守恒的.This work is one of the series , which studies the lepton identificationin the BES ( Beijing Spectrometer ) in detail.这项...
ecu是用小写字母而不是大写字母印刷的。"Ecu" was printed in lower case rather than capital letters.它是用小写体印刷的。It was printed in lower case.以粗体大写字母印刷的标题a title printed in bold caps...