写定义交通密度,哪里是公路段的长度。方程(1)现在可以用密度来书。
Define traffic density as, where is length of the road segment. Equation (1) can now be written in terms of density.
对差分方程的研究就是讨论它的解的最终性态,包括振动性、循环长度及全局渐近稳定性等。
The investigation on difference equation is to discuss its eventually behavior of the solutions, including oscillation, cycle length and global asymptotic stability, etc.
求出了丰度方程的近似解,从而计算得到热扩散级联的长度及同位素浓缩产品的丰度。
The solutions of the differential equations are calculated, through which the length of thermal diffusion cascade and the abundance of isotope products are calculated.
给出了非圆齿轮的节曲线极坐标方程,两齿轮中心距的计算方法,节曲线长度、基础圆半径和压力角的计算公式。
The polar equation of non-circular gear pitch curve, calculation method of center distance, formula of pitch curve length, primary circle radius and pressure Angle is given.
织物弯曲长度、厚度等与织物悬垂性可以线性方程表达。
The relationship can be expressed by a linear equation of winding length and thickness versus drape behavior.
结果表明当电子半径大于一个临界长度时,方程的解表现出良好的性质,不会出现奔离和预加速的现象。
It is shown that when the radius of the electron is greater than a critical length, the behavior of the solution is fine, no run-away and pre-acceleration appears.
在考虑了阀门井水流、各水头损失及廊道和支孔惯性长度的影响之后,推导了船闸廊道复合管非稳定流的基本方程组。
The basic equations describing unsteady flow in lock manifold are derived, in which various hydraulic loss and inertia head of culvert and ports are included.
建立了含有微气泡的平板边界层方程,并采用一种简单的混合长度模型和有限差分方法对该方程进行了数值计算。
The equations of the boundary layer containing microbubbles on the plate are established, then calculated employing a simple mixing length model and a finite difference method.
基于激光器速率方程,分析了激光输出与光纤长度、后腔镜的关系,讨论了小功率泵浦时光纤内的功率分布情况。
Based on rate equations, the laser output characteristic under different fiber length and back-cavity mirrors is studied, and the distribution of pump power and laser power is discussed.
文章描述了智能控速路面工作的状态方程,研究了其设计长度、组数及应用领域,并对实验进行了分析。
The paper has described the work equation of state about the intelligent controlling velocity road, studied its design length, the group number and the application domain, and analyzed the tests.
量测量包括目标对两个追踪航天器的视线角和追踪航天器之间的基线方位与长度,并以此建立了量测方程。
A measurement model is established, which includes the LOS angles of the target relative to the two spacecraft and both the azimuth and the length of the measurement baseline.
插管长度与前正中线相关回归方程式为:肠系膜上动脉(?)
The regression formulae to estimate the length of catheter were calculated from the anterior median line by means of regression analysis.
应用一维波波动方程式探讨基桩长度对打击桩的影响。
This paper is to study how the lengths of foundation piles influencing driven piles by one dimensional wave equation.
按此方程导出了无侧移框架和有侧移框架柱的计算长度取值方法。
The evaluation of column effective length factor both braced frames and unbraced frames with flexible joints is derived.
得到了非线性系数以及特征长度和预倾角的关系,并且给出了强非局域性的非线性薛定谔方程,最终得到了单孤子和临界功率的解析解。
Then the Schrdinger-type nonlinear equation in strong nonlocality was given and from the equation the analytical expressions of the single soliton and the critical power .
本文建立了同时考虑钢丝绳长度差及绳轮半差时的弹性衬垫磨损的微分方程式;并由此得到了衬垫绳槽稳定磨损的条件;
The paper establishes the general differential equations about elastic liner wear problem of mult-rope friction hoist considering the differences of rope's length and rope grooves.
模型由管内蒸汽温降方程、不同敷设方式蒸汽管道的单位长度散热损失方程、总传热热阻计算方程组成。
The model was made up of inner steam temperature drop equations, the steam pipe laying different ways of unit length heat loss equations, total heat resistance calculation equations.
本文根据丁坝作用后水槽中水流情况,采用动量方程结合试验资料,导出了丁坝下游主槽平均流速沿程变化的公式,以此为基础,提出了丁坝作用下河床冲刷段长度的计算公式。
According to the flow state in flume for spur and experimental data, the formulas for the mean velocity of main channel varying with distance downstream were derived with momentum principle.
本文根据丁坝作用后水槽中水流情况,采用动量方程结合试验资料,导出了丁坝下游主槽平均流速沿程变化的公式,以此为基础,提出了丁坝作用下河床冲刷段长度的计算公式。
According to the flow state in flume for spur and experimental data, the formulas for the mean velocity of main channel varying with distance downstream were derived with momentum principle.
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