In this paper, the mathematical know ledge in ancient codes and records was investigated on the base of the previous investigation, fraction and fraction operation were discussed emphatically.
本文是在前人研究工作的基础上，进一步探究了先秦典籍中散在的数学知识，重点讨论了分数及其分数的运算。
The heat transfer coefficient of nanofluids increases with increasing the thermal conductivity of nanoparticles and base fluid, and increases with an increase in the volume fraction of nanoparticles.
纳米流体的对流传热系数随着颗粒和基液热导率的增加、颗粒体积分数的增加以及颗粒粒径的减小而增大。
A volatile pressing oil HC-L200 was formulated with hydrotreated narrow fraction light base oil, fatty acid ester lubricant and additives, such as homemade wetting agent and compounded antirust agent.
根据铝翅片冲压加工工艺的技术特点，选用加氢精制窄馏分轻质油为基础油，添加特制的脂肪酸酯为油性剂以及自制的润湿剂和复合防锈剂等添加剂调合成HC - L 200挥发性冲压油。
NURBS curve equation has three kinds of the equivalence form, i. e. rational fraction, rational base function and homogeneous coordinate.
NURBS曲线方程具有三种等价形式：有理分式表示、有理基函数表示和齐次坐标表示。
According to different optics-dispersion character, threshold segmentation method is proposed to identify gas from the gas-water flow, which make steadfast base for further calculate void fraction.
根据气泡和水对光的反射特性不同，提出采用阈值法识别图像中的气泡和水，从而为进一步计算掺气浓度打下坚实的基础。
And the above heavy fraction base oils were applied to the formulation of engine oils and a series of blending projects were obtained.
并将以上重组分基础油在内燃机油配方中进行了应用，得到了相关内燃机油产品的调合方案。
Most of the heat affected zone retained original structure characteristics of the base metal, and only a fraction of the zone remelted.
热影响区大部分保留了母材的原始组织特征，小部分区域发生了重熔。
Multiply the decimal fraction by the radix (number base).
用基数乘十进制小数。用基数乘十进制小数。
Multiply the decimal fraction by the radix (number base).
用基数乘十进制小数。用基数乘十进制小数。
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