D ecel<chr_var letter="s" var="long">∫</chr_var> <chr_abbr type="reg" class="dc" expan="que" cert="no">q-hbar</chr_abbr>il<chr_abbr type="reg" class="sc" expan="tro" cert="no">t-o</chr_abbr>ua plu<chr_var letter="s" var="long">∫</chr_var> <chr_abbr type="reg" class="dc" expan="" cert="no">p-hbar</chr_abbr><chr_var letter="s" var="long">∫</chr_var> 