<chr_large size="2" color="" detail="">U</chr_large> n<chr_var letter="s" var="long">∫</chr_var> <chr_abbr type="frq" class="ct" expan="cheualier" cert="no">ch[apost]r</chr_abbr><chr_var letter="s" var="long">∫</chr_var> au<chr_abbr type="reg" class="dc" expan="que" cert="no">q-hbar</chr_abbr><chr_var letter="s" var="long">∫</chr_var> dahe 