ccording to the characteristics of magnetic force system given by Ampere′s law , applying the theory on the composition of force system, the systematic study on magnetic force of solving a section of current-carrying conductor with Ampere′s law is made.
根据由安培定律所提供的磁场力系特点，应用力系合成理论等有关力学知识对应用安培定律求解一段载流导线所受的磁场力进行了全面讨论，并指出了具体应用。
About the forms of the equilibrium equations in various system of forces;
力系平衡方程的多种形式
Risk-based low voltage security forewarning for power systems;
基于风险的电力系统低电压安全预警
Study of harmonic analysis and simulation of offshore platform power system;
海洋平台电力系统谐波分析及仿真研究
Dealing with the problem of vortex induced vibration (VIV) of submarine pipe span with spoiler and focusing on the asymmetry of its lift coefficient, two new concepts are proposed: lift coefficient amplitude and lift coefficient additional value according to the special structure of spoiler.
然而对于带阻流板的管跨结构,由于其结构的特殊性,导致流场在绕流过程中产生的升力系数具有明显的非对称性。
According to Navier Stokes equation, the lift coefficient and drag coefficient of the fiber were sug.
以振动纤维栅过滤除尘器中纤维为研究对象 ,通过实验研究结合流体诱发振动的机理分析 ,确定引起纤维振动的主要原因是流体绕流纤维时 ,旋涡脱落的不对称性产生的周期性升力作用于纤维 ,使纤维发生自激振动 ,旋涡脱落的频率与纤维的固有频率产生同步效应时旋涡脱落诱发纤维产生共振·当发生共振时 ,可以根据纳维斯托克斯方程计算出旋涡脱落产生的升力系数和阻力系数
The aerodynamic loads and the maximum lift coefficient of the complete aircraft configuration (fuselage+wing+tail) are computed by using the modified three-dimensional low-order panel method in conjunction with the semi-empirical formulas of DATCOM.
同时使用一种由三维低阶板方法结合DATCOM方法半经验公式的改进方法预测复杂外形飞行器(机身+机翼+尾翼)的空气动力载荷和最大升力系数。
According to the present experiment results,the precision of all calculation correlations for resistance factor in transition zone and laminar zone was compared.
根据已有的实验结果,分析比较了过渡区和层流区各种阻力系数模型计算的准确性,以及各流型之间过渡时的基本变化特征。
25 μm~2 by using an injecting procedure fresh water (TSD=729 mg/L)-gel-produced or fresh water with total volume injected >5 PV, the resistance factor, F__R, determined is in range 266.
用大庆采油二厂的污水(矿化度4013mg/L)配制不同HPAM浓度的Al3+交联聚合物凝胶,在气测渗透率1 25μm2的人造岩心上,按清水(矿化度729mg/L)—凝胶—污水或清水的注入程序,注入量>5PV,测得凝胶中HPAM浓度为0 6、0 5、0 4g/L时,残余阻力系数FRR(368 6～277 4)大于阻力系数FR(266 7～246 0),二者均随HPAM浓度减小而减小;后续注入清水时FRR较低;凝胶中HPAM浓度为0 3g/L时FRR
This paper has studied the convergence of iteration algorithm for colebrook s formula which has been used to determining the resistance factor about industrial pipes in three regions of turbulent flow resistance (i.
本文研究了适用于工业管道紊流三个阻力区（即光滑区、过渡区和粗糙区）阻力系数计算的柯列勃洛克公式迭代算法的收敛性，给出了收敛区间。
Evaluation of drag coefficient on particles in cluster by using lattice Boltzmann method;
颗粒团绕流曳力系数的LBM计算
Based on the measured data of the cross-sectional average solids holdups at different axial locations of riser under various operation conditions and through the dynamic balance analysis of single particle,drag coefficients were indirectly obtained.
在高16 m气-固循环流化床提升管内,通过测定表观气速、颗粒质量流率和不同轴向高度的床层平均颗粒浓度,结合对单颗粒进行受力平衡分析,间接获得了不同轴向位置的颗粒曳力系数。
The drag coefficient is a key parameter in the analysi.
1~200范围内27个不同Reynolds数时的曳力系数,并将计算结果拟合得到基于LBM数值模拟的曳力曲线。
power coefficient
功率系数，动力系数
drag coefficient
牵引系数，阻力系数
blade profile drag coefficient
桨叶剖面阻力系数，叶型阻力系数
Such force systems are said to be statically indeterminate.
这样的力系叫做静不定力系。
Power System Relay Protection
电力系统继电保护原理
coefficient of kinetic viscosity
动力粘性系数，动力粘度
gravity forced feed oiling system
压力-重力式润滑油系统
TLP mooring system
张力腿平台系泊系统
A Review of the Relationship of Creativity with Ability, Expertise and Competency;
创造力与能力、专长及胜任力关系评述
Relation Analysis of the Pressure Ability,Torque Ability of Crank Press and Force-angle Curve
曲柄压力机的压力能力、扭矩能力与力-转角曲线图的关系分析
chordwise force
弦向分力；连系座标系切向(空气动力分)力；弹体座标系切向(空气动力分)力
Human Resources and Systems Services Division
人力资源和系统事务司
Human Resources and Systems Management Division
人力资源和系统管理司
direct force flight control system
直接力飞行控制系统
electronic countermeasure resistant communication system
电子对抗阻力通信系统
series straight-side single-point press
系列闭式单点压力机
sewage gravity collecting system
污水重力式收集系统
MPIS (Manpower and Personal Information System)
人力与人事情报系统