In this study we consider whether the rheological constants of selfcompacting concrete can be calculated from the physical properties of materials and mix proportions.
考察了能否根据材料力学性能和混合比计算出自密实混凝土的流变常数，首先研究了材料的性能对混凝土流变常数（塑性粘度、屈服值）的影响，然后研究了一种根据混合材的力学性能和混合比计算混凝土的塑性粘度的方法。
In this paper,using the method of variation of constant,some new conditions of integrability on the Abel equation and Riccati equation are given.
应用常数变易法,给出了Abel方程和Riccati方程一些新的可积条件,从而扩大了两类非线性微分方程的可积范围,改进并推广了已有结果。
Lagrange's method of variation of constants
拉格朗日常数变易法
Variation Constant for Particular Solution of Second Order Linear Differential Equation with Constant Coefficients
常数变易法求二阶常系数线性微分方程的特解
A Method of Constant Variation for solving Two Kinds of Nonlinear Differential Equation
解两类非线性微分方程的常数变易法
Applications of Variation Constant in Solving Differential Equations;
常数变易法在求解微分方程中的应用
The method of variation of parameters for salving the Vacco dynamical equations;
解Vacco动力学方程的常数变易法
On Solving Linear Differential Equations of Order Three with Constant-transform Method;
常数变易法求解三阶常系数非齐次线性微分方程
The Method of Quadratic Constant Variation for Solving Several Kinds of Nonlinear Differential Equations;
用二次常数变易法解几类非线性微分方程
The Coefficient Variation of Non-homogeneous Linear High-order Differential Equation;
高阶非齐次线性微分方程的常数变易法
THE METHOD OF VARIATION OF PARAMETERS FOR SALVING THE RAITZIN’S CANONICAL EQUATIONS OF NONHOLONOMIC NONCONSERVATIVE MECHANICAL SYSTEMS;
求解非完整非保守力学系统Raitzin正则方程的常数变易法
From One Special Solution of Homogeneous Linear Differential Equation to the General Solution of Non-homogeneous Linear Differential Equation;
从齐次方程的一个特解到非齐次方程的通解——二阶线性微分方程的又一种常数变易法
An instance of being eccentrically variable or fickle.
变换无常反复无常或易变的情况
Certain granular solids transform into highly mobile slurries.
一定数量的粒状固体就可以变成非常易流动的泥浆。
The math exam was a clay pigeon.
数学考试非常容易。
The state or quality of being eccentrically variable or fickle.
善变反复无常或易变的情形或品质
direct axis transient short circuit time constant
直轴瞬变短路时间常数
open circuit subtransient time constant
开路初期瞬变时间常数
direct axis transient open circuit time constant
直轴瞬变开路时间常数
short circuit subtransient time constant
短路初期瞬变时间常数