<chr_abbr type="reg" class="dc" expan="Qui" cert="no">Q-vbar</chr_abbr> e<chr_var letter="s" var="long">∫</chr_var>t ce <chr_abbr type="reg" class="dc" expan="qui" cert="no">q-vbar</chr_abbr><chr_var letter="s" var="long">∫</chr_var><chr_var letter="s" var="long">∫</chr_var>i b<chr_abbr type="reg" class="dc" expan="" cert="no">n-hbar</chr_abbr> le fait 