Polarographic Determination of Trace Free(TF) Copper in Feed Additives 饲料添加剂中微量游离铜的极谱测定
A method for determination of trace free glycerol in oil 一种测定油脂中微量游离甘油的方法
This method is reliable, simple, quick and economic and seems to be an ideal method for determination of trace free glycerol in the oil. 此种方法定量准确,简便快捷,是一种理想的测定油脂中微量游离甘油的方法。
The article gave a minute description of operational method and skill in measuring trace free TDI in polyurethane prepolymer by gas chromatography. 详细叙述了用气相色谱法测定聚氨酯预聚体中微量游离TDI的操作方法和技巧。
Based on the universal k - ε turbulent model, we trace free surface with the volume of fluid ( VOF ) method for taking the character of distinct surface elevation, and establish a two-dimensional model of vertical plane turbulent jet discharged from bottom of shallow water. 以kε紊流模型为基础,针对浅水环境垂向射流的水面会有明显突起情况,采用VOF(Volumeoffluid)方法追踪自由面,建立了适合浅水环境垂向平面紊动射流的二维数学模型。