片语

friction n factor摩擦系数

dry friction damping factor干摩擦阻尼因子

friction damping factor摩擦阻尼系数

friction axis factor摩擦因子

friction destabilizing factor摩擦失稳因子

Friction deviation factor摩擦偏差系数

friction correction factor摩擦修正因数

friction resistance factor摩擦阻力因数

英汉例句

• an example shows that it is convenient and accurate to calculate the friction factor with the ann model and it can be used in engineering practice.

  计算实例表明，采用ann方法计算沿程水头损失系数简单方便，计算精度高，工作量小，可操作性强，通用性好，工程适用性强。

• then, the mover mass, viscous friction factor and disturbance force are estimated by the proposed estimator, which is composed of a recursive least square (rls) estimator and a disturbance observer.

  其次，由递推最小二乘估计器rls和负载扰动力观测器构成的估计器，用它来估计动子质量、粘滞摩擦系数和负载扰动力。

• the colburn factor decreases when number of tube rows increases while the effect of number of tube rows on the friction factor is small.

  换热因子随着管排数的增加而减小，而摩擦因子受管排数的影响不显着。

• in this paper, the mean velocity profile, the friction factor for all regions and the turbulent intensity for smooth wall are presented and compared with the experimental data.

  本文介绍了宾汉流体从层流向紊流过渡时的时均流速和阻力系数，以及宾汉紊流在光滑区的紊动强度沿垂线分布。

• 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 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。

• finally the author analyses the effects that the friction factor on the punch force.

  最后以约束孔分流为例，分析了摩擦因子对成形力的影响。

• therefore the shaped en hanced tube that takes heat transfer factor and friction factor as test relational expressions and water and oil as working media should be developed.

  为準确确定物性的影响，应扩大试验介质的范围，应以水和油为工作流体，将试验数据整理为传热因子与摩擦因子的关联式。

• 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。

• 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。

• when environment pressure is lowered, the friction factor decreases and the endurance life increases obviously.

  环境气压降低（特别在真空中）时薄膜的摩擦因数降低，摩擦稳定性提高，耐磨寿命延长；

• 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。

• 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。

• finally, the measuring method of friction factor between straw and iron, straw and rubber is studied.

  最后，制定草与铁、草与橡胶摩擦实验设计与测定方法。

• then the expression of the kinetic friction factor is determined by comparing the simulation results of this new model with those of the distributed-parameter model.

  经与研究管路动态的特征线法和分布参数键图法的对比分析，确定了动摩擦液阻的表达式。

• 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。

• relationship has been studied on defect to deformation degree, friction factor and relative length of mould plastic section.

  同时，研究了表面缺陷产生与变形程度、摩擦因数及模具整形段相对长度的关系。

• 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；

• meanwhile, the effects of number of pump stations, heating time, primary investment and electricity price on the economic friction factor is computed and analysed.

  并计算分析了泵站数目、供暖时间、初投资和电价变化对经济比摩阻取值的影响。

• a qualitative analysis of the variation of weld surface condition, welding heat distribution and friction factor in the initial stage of friction welding of drill pipe is carried out.

  对石油鉆桿摩擦焊初始阶段焊接面状况、焊接热分布、摩擦系数等的变化作了定性分析。

• it was shown that the ptfe compound lubricant coating film has lower friction factor and longer service life.

  由聚四氟乙烯复合润滑涂料制得的涂层，具有低的摩擦系数和高的耐磨寿命。

• in this paper, the testing data of friction factor between syenitic blocks under static and dynamic conditions are presented. dynamic tes…

  两种条件下的动摩擦系数的变化规律也有明显区别。