<chr_abbr type="frq" class="ss" expan="et" cert="yes">et2</chr_abbr> <chr_var letter="s" var="long">∫</chr_var>ai g<chr_abbr type="reg" class="sc" expan="rant" cert="no">nt-alpha</chr_abbr> me<chr_var letter="s" var="long">∫</chr_var>tier de c<chr_abbr type="reg" class="dc" expan="on" cert="no">o-hbar</chr_abbr><chr_var letter="s" var="long">∫</chr_var>eil. 