<chr_abbr type="reg" class="dc" expan="" cert="no">P-til</chr_abbr> ce le me doi<chr_var letter="s" var="long">∫</chr_var> b<chr_abbr type="reg" class="dc" expan="" cert="no">n-hbar</chr_abbr> d<chr_abbr type="" class="" expan="" cert="no">[apost]</chr_abbr>oner 