<chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr> m<chr_abbr type="reg" class="dc" expan="an" cert="no">a-hbar</chr_abbr>gierent an<chr_var letter="s" var="long">∫</chr_var>anble <chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr> bur<chr_abbr type="reg" class="dc" expan="ent" cert="no">et-hbar</chr_abbr> 