S i<chr_abbr type="reg" class="dc" expan="que" cert="no">q-hbar</chr_abbr> nel puet aillor <chr_abbr type="reg" class="dc" expan="" cert="no">p-hbar</chr_abbr><chr_var letter="s" var="long">∫</chr_var>t<chr_abbr type="reg" class="dc" expan="er" cert="no">[apost]</chr_abbr> 