<chr_abbr type="reg" class="dc" expan="Que" cert="no">Q-hbar</chr_abbr> <chr_var letter="s" var="long">∫</chr_var>ele ala<chr_var letter="s" var="long">∫</chr_var>t a<chr_abbr type="reg" class="ml" expan="par" cert="no">par</chr_abbr>te<chr_abbr type="reg" class="dc" expan="" cert="no">mt-hbar</chr_abbr> 