The results show that the friction factor measured is reliable and the computation method …
通过试验证明了测定的摩擦阻力系数是可信的，拟定的计算方法是实用的。
Because of the complexity of turbulent flow, it is a tough issue to determine its friction factor.
鉴于紊流运动的复杂性，其沿程阻力系数确定起来较为困难。
The results indicate the friction factor will be reduced with the increasing silicon adding amount.
结果表明：摩擦系数随硅助剂添加量的增加而降低；
The results show that the friction factor measured is reliable and the computation method is practical.
通过试验证明了测定的摩擦阻力系数是可信的，拟定的计算方法是实用的。
Analyses parameter have inclined Angle, pipe diameter size, gas liquid ratio and friction factor and so on.
分析参数有：倾斜角度、管径大小、气液比和摩阻系数等。
Influential factors of friction factor of head loss are analyzed by adopting artificial neural network (ANN).
采用神经网络(ANN)方法对沿程水头损失系数的影响因素进行了分析。
The conditionality between the flow rate and the pipe diameter is discussed when the friction factor is fixed.
文中还分析了在摩擦阻力系数一定的情况下，流量与管径的制约关系。
The swatch values of friction factor of three kinds of precast buried heating pipe and backfilling sand is calculated.
通过对施工变量、运行变量的工程测量及计算得到三种规格的预制直埋供热管道与回填砂的摩擦系数样本值。
The error analysis of different empirical formula of friction factor is done and the applicable range of these formula is given as well.
笔者对计算摩擦系数的一些经验公式进行了误差分析，对经验公式的应用范围提出了个人的看法。
The friction factor obtained from the experiments increases with the surface roughness increase when the relative roughness is greater 1%.
实验结果表明当壁面粗糙度超过1%时摩擦系数随着壁面相对粗糙度的增加而增加。
The aluminum alloy caterpillar track, the friction factor is small, pulls the piece to be smooth, sur - stainless steel wear-resisting frame.
铝合金链轨，磨擦系数小，拉片平顺，外加不锈钢耐磨边框。
The calculation results showed that the friction factor and apparent viscosity of hydrate slurries increase with increasing pressure and flow rate.
计算结果表明，压力高和液体流量大的体系，其摩擦阻力系数和表观粘度值均较高。
In high Reynolds number range of 10,000 ~ 90,000, the flow friction factor, local and average convection heat transfer coefficients were determined.
在10,000 ~ 90,000的高雷诺数范围内，测量了流动摩擦系数、局部和平均对流换热系数。
With each insert, friction factor characteristics and the effect of radiant heat transfer enhancement to overall heart transfer coefficients are analysed.
对不同翅片内插件高温换热管辐射传热对整体换热系数的影响进行了讨论。
The sealing structure has the advantages of simple structure, low friction factor and reliable sealing, which can prolong the service life of sealing rings.
本实用新型的有益效果是结构简单，摩擦系数小，密封可靠，延长了密封圈的使用寿命。
The larger specific gravity of fine iron ore results in an increase of friction factor of dense phase conveying and has certain influence on various parameters.
铁矿粉的比重大使摩擦系数增大，对浓相输送时的各种参数有一定影响。
Soft, slippery, strong grip strength, good flexibility, fine performance of ozone proof, hardwearing, oil stain proof. A smaller friction factor Long service life.
该胶圈柔软光滑，握持力好、弹性好、抗臭氧、耐磨性好，摩擦系数波动范围小，使用寿命长。
Experimental results show the change of friction factor is correlative with the difference of running temperature and installation temperature but not the force time.
经过数据整理得出了以下结论：摩擦系数的大小变化决定于运行温度和安装温度差，和“推动次数”无关。
UHMW-PE set in front of panel, it can lower friction factor between vessel and fender, lower the shear strength while vessel berthing, and raise utility of fender life.
防冲板前面安装超高分子量聚乙烯，可减小船舶与护舷的摩擦系数，大大降低船舶靠泊时剪切力，从而提高护舷使用寿命。
The friction factor between two tooth surfaces of instrument gears during one meshing process is imitatively measured in this paper under the condition of ultra-low-speed.
本文在极低速情况下，模拟测定了仪表齿轮在一齿啮合过程中两齿轮齿面间摩擦系数的变化情况。
This paper presents a method of calculating the static sliding friction factor between zigzag slot and pin. A brief description of the fuse zigzag slot mechanism is given.
该文给出了求解惯性筒上的曲折槽与销之间的滑动静摩擦系数的一种方法，介绍了引信曲折槽机构。
Through calculating friction factor and operating point of pump or fun of two examples on fluid mechanics, methods using solver and curve-fitting in EXCEL were introduced.
通过对流体力学中沿程阻力系数和泵与风机工作点等问题的求解，介绍了EXCEL单变量求解器和曲线拟合的方法。
In the paper, the formula of economic friction factor for hydronic heating system with intermediate boosting pump station and different laying mode is derived theoretically.
本文从理论上推导出带中间增压泵站、有不同敷设方式的热水供热网经济比摩阻的计算公式。
The friction factor obtained from the regression analyses of the peak strength, residual strength and confining pressure are roughly equal and the cohesion is reduced by 54.4%.
峰值强度、残余强度与围压回归得到的摩擦系数大致相当，黏聚力则减低54.4%。
But the theory about the flow regime of the wave boundary layer, the wave friction factor, the bed shear stress and the initiation of sediment motion has not developed very well.
而且波浪是海岸地区一个非常重要的海洋水动力因素，波浪作用下底部边界层的流态、底摩阻系数、床面剪应力和泥沙起动的理论还不成熟。
During the treatment of a particle field the effect of particle diameter, specific weight, rigidity of material and friction factor, etc on particle movement has been taken into account.
在处理颗粒场时考虑到颗粒直径、比重、材料的刚度、摩擦系数等对颗粒运动的影响。
A new coefficient of Prandtl's relation was obtained from the experimental data. Compared with three conventional relations of friction factor, the range of Reynolds number was extended.
在实验结果的基础上提出了普朗特摩擦系数关系式的新系数，与常用的摩擦系数关系式相比，扩大了普朗特摩擦系数关系式的雷诺数应用范围。
To meet the requirement for the diamond-like carbon thin films with low friction factor, the tungsten-doped diamond-like carbon(W-DLC)thin films prepared through PECVD were studied in depth.
为了满足制备较厚低摩擦系数类金刚石薄膜（DLC）耐磨镀层的实际需求，对在等离子增强化学气相沉积的类金刚石薄膜（W-DLC）中掺钨进行了系统研究。
Contrastive simulation research on heat - transfer factor, friction factor and fin structure of offset strip fin heat exchanger affect heat - transfer property by compiling computer programs.
采用计算机编程对错位翅片型板翅换热器的传热固子、摩擦因子及翅片结构对传热性能影响进行了数值模拟对比研究。
The formula for calculating the rolling friction factor was developed and established. Based on the analysis of central force action, the formula for circumferential force action is developed.
在完成中心动力作用下的摩擦系数计算公式后，继续用计算法确定周动力作用下的滚动摩擦系数。
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