扩散力 meaning in English

diffusive forces

Testing of pigments and extenders ; determination of relative scattering power of white pigments ; black - ground method
颜料和填充料的试验.白色颜料的相对扩散力的测定.背
Testing of pigments and extenders ; determination of relative scattering power of white pigments ; black - ground method , procedure , example , test medium alkyd resin
颜料和填充料的试验.白色颜料的相对扩散力的测定.背