<chr_abbr type="frq" class="ss" expan="et" cert="yes">et2</chr_abbr> viegn<chr_abbr type="reg" class="dc" expan="ent" cert="no">et-hbar</chr_abbr> li<chr_var letter="s" var="long">∫</chr_var>ai<chr_abbr type="" class="" expan="" cert="no">[apost]</chr_abbr>t oren<chr_abbr type="reg" class="sc" expan="dro" cert="no">d-o</chr_abbr>it 