<chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr> v<chr_abbr type="reg" class="dc" expan="" cert="no">r-hbar</chr_abbr>e ho<chr_var letter="s" var="long">∫</chr_var>tel huime<chr_var letter="s" var="long">∫</chr_var> p<chr_abbr type="reg" class="dc" expan="re" cert="no">[apost]</chr_abbr>ndron<chr_var letter="s" var="long">∫</chr_var> 