<chr_var letter="N" var="2">N2</chr_var> ont pa<chr_var letter="s" var="long">∫</chr_var> failli e<chr_abbr type="reg" class="dc" expan="in" cert="no">i-hbar</chr_abbr>coi<chr_var letter="s" var="long">∫</chr_var> lou fier<chr_abbr type="reg" class="dc" expan="en" cert="no">e-hbar</chr_abbr>t. 