Define traffic density as, where is length of the road segment. Equation (1) can now be written in terms of density.
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。
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.
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 investigation on difference equation is to discuss its eventually behavior of the solutions, including oscillation, cycle length and global asymptotic stability, etc.
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 relationship can be expressed by a linear equation of winding length and thickness versus drape behavior.
织物弯曲长度、厚度等与织物悬垂性可以线性方程表达。
This paper presents a novel algorithm for solving differential equation of distance protection which adopts an adaptive window length based on noise level control.
在研究传统解微分方程距离保护采用固定窗长的基础上，提出了一种基于噪声水平控制的变窗长算法。
Combined with the experimental results, the equation is put forward for calculating the melting length of the broken solid pieces.
根据固相加速实验结果，提出固相碎块轴向熔融长度计算公式。
The coordinate value of corresponding profile may be obtained quickly so long as the length of the chord of arbitrary oblique section is computed, without solving the complex equation of the surface.
只要算出任意斜截面的弦长，就可以很快地得到对应外形的坐标值，而无需求解复杂的曲面方程。
Methods Measure the depth of the soft tissue in the back neck of fetus, Biparietal diameter(BPD) , femur length(FL) and abdominal circumference(AC), and apply linear regression equation.
方法超声测量胎儿颈后软组织厚度、双顶颈、股骨长径、腹围、应用线性回归方程求出各指标与胎儿体重的关系。
The direct solution formula for the curve length of a theoretical control point on the transition curve is proposed, with the solution of high order equation being avoided.
导出了隧道控制测量中缓和曲线理论投点曲线长的直接求解公式。
The effective length of the drag line will be obtained by solving the reverse catenary equation and then the expression of trajectory in actual state will be derived.
通过对反悬链方程的求解推求有效缆长，继而得出了实际状态下的轨迹表达式。
The linear correlation regression equation of fetal weight, CR length and fertilization age were set up.
建立了体重、顶臀长与胎龄的直线相关回归方程。
Making use of nonlinear curve fitting, distribution equation of bond stress of the fixed unit anchor length is achieved.
并对测试结果进行了拟合，得出了锚固段粘结应力分布的拟合方程。
The bit length of flow ID selected under given confliction probability can be conducted from an equation deduced from the observing window and flow ID range.
给定冲突概率时，该流标识的比特长度可以根据一个由观察窗口和流ID值域导出的关系式求出。
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.
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。
Predicting from the length of the middle fingers, the regressive equation of it is (?)
从中指长推算环状软骨最小内径的回归方程为（?）
Based on the mechanical analysis, the equation between stress and loop length is set up, and it is proved by testing result of kitted fabrics with different stitch densities.
针织物受力时产生起拱变形现象，通过力学和数学分析，建立了力与线圈长度的关系式。
Starting from the ray path equation, object-image relationships are found and used to determine the equivalent focal length and the principal planes of tapered GRIN fiber.
本文从光线轨迹方程出发，推导了锥形梯度折射率纤维的物像关系式，并得出了它的等效焦距和主平面位置。
Some sufficient conditions for the strict oscillation, the cycle length and the position of the extreme in a semicycle of the equation are obtained.
得到了方程（ ）严格振动的充分条件，环长以及环上极值位置。
The per-unit-length capacitance matrix used in multi-conductor transmission line coupling equation can be solved by Moment Method.
对于多导体中所需要的单位长度电容和电感矩阵，使用矩量法进行分析。
According to structural mechanics of cyclic fracturing length and the cyclic weighting interval for the rock beam fracture, Mechanical models and the motion equation are established.
根据岩梁周期裂断步距与周期来压步距的力学结构，建立了各自的力学模型，推导其运动方程。
A variable length simple pendulum model is introduced, elementary analysis and perturbation analytic solution of nonlinear differential equation for parametric resonance are presented.
采用可变长度单摆的力学模型对秋千振荡给出初等分析，采用微扰近似法导出了秋千的非线性参数共振解析解， 并进行了讨论。
Basee on the mixing-length theory of convection, macroscopical stress of the turbulence is used in hydrostatics equation of the stellar structural and evolutionary model.
以恒星结构与演化理论中常用的混合程理论为基础，将湍流作用表现出来的宏观应力引入恒星结构与演化模型中的流体静力学平衡方程。
Basee on the mixing-length theory of convection, macroscopical stress of the turbulence is used in hydrostatics equation of the stellar structural and evolutionary model.
以恒星结构与演化理论中常用的混合程理论为基础，将湍流作用表现出来的宏观应力引入恒星结构与演化模型中的流体静力学平衡方程。
应用推荐