<chr_abbr type="reg" class="dc" expan="Que" cert="no">Q-hbar</chr_abbr> cil <chr_abbr type="reg" class="dc" expan="qui" cert="no">q-vbar</chr_abbr><chr_var letter="s" var="long">∫</chr_var>t<chr_abbr type="reg" class="dc" expan="er" cert="no">[apost]</chr_abbr> de<chr_var letter="s" var="long">∫</chr_var><chr_abbr type="reg" class="dc" expan="pri" cert="no">p-vbar</chr_abbr><chr_var letter="s" var="long">∫</chr_var>onne 