1)friction factor摩擦阻力系数
1.The variation of pressure drop with mean velocity,the variation of friction factor and the variation of apparent viscosity with Reynolds number were obtained.实验研究了由正十四烷和尿素甲醛树脂制成的相变微胶囊和水混合制成的潜热型功能流体在流过恒热流圆管进行对流换热时的流动阻力特性,获得了压降随流速的变化关系、摩擦阻力系数和表观黏度随R e的变化关系。
2.The friction factor,heat flux and Nusselt number were calculated.通过测量流量、进出口压力和温度等参数,获得了流体流过微通道时的摩擦阻力系数、对流换热过程中的热流通量和N u等。
3.This article analyses the drop characteristics and calculating methods for friction factorλo.本文在分析了大量纯空气和气固两相流在水平管道内流动时摩擦阻力系数人人的计算方法的基础上，结合我们在大型电站锅炉送粉管道中所做的试验，通过分析回归得出了计算送粉管道摩擦阻力系数λμ的经验公式。
英文短句/例句
1.The Research of New Methods to Compute Coefficient of Mine Roadway's Frictional Resistance;确定矿井巷道摩擦阻力系数的新方法研究
2.Research on Development of the Connection Equation on Friction Factor of Fluid Resistance流体阻力摩擦系数关联式演变的探讨
3.Comparison and Improvement of the Connection Equation on Friction Factor of Fluid Resistance流体阻力摩擦系数关联式的比较与改进
4.Product character： Good flow, film smooth, excellent adhesion, reduce the coefficient of rub and cut down the obstruction of transportation.作用同时可有效降低管道内壁摩擦系数，减少输送阻力。
5.Round pit pattern increase friction resistance,pjrevent from slipping of goods.圆坑花纹摩擦系数大，运行中增加阻力，防止物料下滑。
6.frictional soil内摩擦阻力大的土壤
7.head of fluid frictinal loss流体摩擦阻力损失压头
8.Effect of friction coefficient on stress field intensity of gear crack摩擦系数对齿轮裂纹应力场强的影响
9.Experimental Study on Cutting Force and Friction Coeffi cient of PCBN Cutting ToolPCBN刀具切削力及摩擦系数试验研究
10.For sliding contact, the coefficient of kinetic friction Uk is defined as the ratio of the frictional force to the normal force.滑动接触时，动摩擦系数Uk的定义是摩擦力与法向力的比率。
11.Research on Friction Factor of Fluid Resistance and Preliminary Research on the Simulation of Atmospheric and Vacuum Distillation Process by PRO/II流体流动阻力摩擦系数若干问题的探讨与PRO/II对常减压蒸馏过程模拟的初步研究
12.Petroff equation佩特罗夫摩擦系数公式
13.Maximum Allowable Side Friction Factor最大容许侧向摩擦系数
14.static steering friction coefficient静转向地面摩擦系数
15.The degree of resistance involved in dragging or hauling.摩擦力拖拉中所受阻力的程度
16.Study of the relationship between pressure and acoustic emission parameters due to steel-steel surface rubbing钢与钢摩擦时正压力与声发射参数关系研究
17.Wind Turbine Components Brake Friction Coefficient Measuring Device风力发电机刹车元件摩擦系数测量装置的研制
18.Study on the Friction Coefficient of Cermet Based on Cutting Force基于切削力的金属陶瓷刀具表面摩擦系数研究
相关短句/例句
friction coefficient摩擦阻力系数
3)coefficient of frictional resistance摩擦阻力系数
1.Applying BP neural network model to calculate coefficient of frictional resistance of roadways;利用BP神经网络确定巷道摩擦阻力系数
2.The standard value of ventilation resistance and coefficient of frictional resistance is very significant to the ventilation management of the mine as the basic data.标准风阻值和标准摩擦阻力系数值作为矿井通风技术管理的基本资料对矿井通风管理具有重要意义。
4)internal frictional res istance coefficient内摩擦阻力系数
5)frictional drag coefficient摩擦阻力系数;滑动摩擦系数
6)friction resistance factor摩擦阻力因数
1.Solving process of friction resistance factor by Celebrook formula and selection of initial value are discussed, and programming calculation of branch courtyard gas pipeline supplying less than two thousand householder is studied.探讨了柯列勃洛克公式摩擦阻力因数的解法和初值的选取,研究了2000户以下庭院枝状燃气管道的编程计算。
延伸阅读
穿透系数分子式：CAS号：性质：用量子力学对传统的过渡态理论进行的修正有三方面：(1)不用经典势垒，改用量子能垒进行零点能修正；(2)反应坐标仍依经典处理，但内部能量量子化，用量子配分函数代替经典配分函数；(3)考虑隧道效应，常用的方法是在速率常数公式中加一校正因子k(T)，称之为穿透系数，即k(T)=k(T)(Q≠/πQR)扩为经零点校正过的能垒，穿透系数k(T)低温时较显著，依温度上升而下降，其数值可大于或小于1，甚至很大。
