"coefficient de diffusion"@fr . "http://encyclopedia2.thefreedictionary.com/Diffusion+of+Neutrons"^^ . "The \"Diffusion Coefficient\" is " . "http://www.iso.org/iso/catalogue_detail?csnumber=31895"^^ . "coeficiente de difus\u00E3o"@pt . "\\(D_n = -\\frac{J_x}{\\frac{\\partial dn}{\\partial dx}}\\), where \\(J_x\\) is the \\(x-component\\) of the particle current and \\(n\\) is the particle number density."^^ . "coeficiente de difusi\u00F3n"@es . . "D" . "difuzijski koeficient"@sl . "Diffusionskoeffizient"@de . . "diffusion coefficient"@en . . . "coefficiente di diffusione"@it .