The only thing they have in common is that both are what's called a first order differential operator.
它们唯一共同之处就是,它们都被叫作一阶微分算子。
The statistical average values of some relevant operators satisfy a set of differential equations of the first order.
有关算符的统计平均值随时间的演化满足一个封闭的一阶线性微分方程组。
In this paper, by estimates of spectral of an integral operator, the authors give a theorem on the existence of solutions for first order differential difference equations with boundary condition.
摘要通过对积分算子谱的估计，作者给出了一阶线性微分差分方程在边值条件下解的存在唯一性定理。
Separable variables are a special class of first order differential equations, which has a wide range of USES in practice.
可分离变量的一阶微分方程是一类特殊的一阶微分方程，它在实际中有着广泛的用途。
Essentially, the opposite reaction kinetics process is a process of resolving the first order ordinary differential equation.
对峙反应动力学过程，其实质是一个求解一阶常微分方程的过程。
The study is made on the oscillation of a class of the first order nonlinear retarded differential equations with variable coefficients, and the sufficient conditions are obtained.
本文研究了一类一阶变系数非线性滞后型微分方程解的振动性，得到这类方程仅有振动解的充分条件。
From the theory of conical shells, a set of the first-order differential equations for the shells of revolution are derived. The discrete-variable method is used to solve the differential equations.
从锥壳理论出发，导出计算旋转壳自由振动的一阶微分方程组，采用离散变量法进行求解。
The numerical solution of chromosome-function was applied for a lot of first order differential equations for the chamber on the projectile in bore of a gun.
利用染色函数解法求解膛内弹上气室气流的一阶非线性分段微分方程组，进行了大量的数值试验，证实数值解是收敛的，也是稳定的。
A double wavelength-differential-first order derivative spectrophotometric assay was established to determine carbon monoxide (CO) generation during in vitro metabolism of xenobiotics.
用双波长、差示、一阶导数分光光度法，建立了一种测定外源物体外代谢时一氧化碳(CO)生成量的新方法。
Proposed a new form of non-linear first-order ordinary differential equation, meanwhile, it shows the parameter form of universal solution.
提出一阶非线性常微分方程新的可积型，且给出其通解的参数形式。
The CAI teaching of a first-order ordinary differential equation is discussed with computer MATLAB software, and its feasibility and convenience is introduced.
利用MATLAB进行一阶常微分方程的计算机辅助教学，探讨用MATLAB进行一阶常微分方程辅助教学的可行性、方便性。
When the speed pulse signal is provided, a calculation of the speed curve is achieved using first order digital differential method and the lease square of five points three times smoothing approach.
对于有转速脉冲信号的情况，实现了基于一阶数字微分和最小二乘五点三次平滑方法的转速曲线计算方法。
Using the contraction mapping principle, we proved a theorem about the existence of solution for initial value problem of a class of implicit ordinary differential equations of the first order.
本文应用压缩映象原理证明了一阶隐式微分方程解的存在唯一性定理。
In this paper, by estimates of spectral of an integral operator, the authors give a theorem on the existence of solutions for first order differential difference equations with boundary condition.
通过对积分算子谱的估计，作者给出了一阶线性微分差分方程在边值条件下解的存在唯一性定理。
We discuss the first order linear differential equations with constant coefficients and give a new vector method of it.
讨论一阶常系数线性微分方程组通解问题，给出一种新的向量解法。
In order to form differential products as well as close cooperation of every aspect in diamond system, we should first utilize comparative advantage in a competitive market.
竞争优势强调的差异化产品、“钻石体系”的密切配合应在长期的市场竞争中，通过发挥比较优势逐步形成。
The new model is a first-order ordinary differential equation group for the fluid pressure in the cylinder...
该方程是关于液缸内液体压力、泵阀升程与泵阀运动速度的一阶常微分方程组。
The new model is a first-order ordinary differential equation group for the fluid pressure in the cylinder...
该方程是关于液缸内液体压力、泵阀升程与泵阀运动速度的一阶常微分方程组。
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