<chr_abbr type="reg" class="dc" expan="" cert="no">Q1-hbar</chr_abbr> <chr_var letter="s" var="long">∫</chr_var>i com ele<chr_var letter="s" var="long">∫</chr_var> uont <chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr> uien<chr_abbr type="reg" class="dc" expan="ent" cert="no">et-hbar</chr_abbr> 