<chr_abbr type="reg" class="sc" expan="Qua" cert="no">Q-alpha</chr_abbr> t le<chr_var letter="s" var="long">∫</chr_var> <chr_var letter="s" var="long">∫</chr_var>aire<chr_abbr type="reg" class="dc" expan="" cert="no">m-hbar</chr_abbr><chr_var letter="s" var="long">∫</chr_var> or<chr_abbr type="reg" class="dc" expan="ent" cert="no">et-hbar</chr_abbr> fai<chr_var letter="s" var="long">∫</chr_var> 