子通量密度的扩散系数 venturi meter coeffi-cient: 文托利流量计系数differential particle flux density: 粒子微分通量密度; 微分粒子通量密度particle flux density: 粒子通量密度,粒子注量particle flux density meter: 粒子通量密度计particle flux density monitor: 粒子通量密度监测器下载手机词典可随时随地查词查翻译