<chr_var letter="S" var="1">S1</chr_var> em<chr_abbr type="reg" class="dc" expan="on" cert="no">o-hbar</chr_abbr>dre. <chr_var letter="s" var="long">∫</chr_var>en u<chr_abbr type="reg" class="dc" expan="" cert="no">re-hbar</chr_abbr> cort n<chr_abbr type="reg" class="dc" expan="on" cert="no">o-hbar</chr_abbr>. 