0 a mathematical statement in which you show that two amounts are equal using mathematical symbols -- 方程式；等式
In the equation 3x - 3 = 15, x = 6. 在方程式3x-3=15中，x=6。
1 a difficult problem that can only be understood if all the different influences are considered -- （多种因素的）平衡，综合体
Managing the economy is a complex equation of controlling inflation and reducing unemployment. 经济管理包括控制通货膨胀、降低失业率等复杂的因素。
2 the act of considering one thing to be the same as or equal to another -- 相等；等同
There is a tendency in movies to make the equation between violence and excitement. 电影有把暴力和刺激相等同的倾向。
In particular, for the wave kinetic equations of energies, only the interactions between nonlinear terms involving either energies or helicities will give a contribution.
Since the wave interaction equations are linear the scattering matrix (5.23) gives the solution for c (t) for general initial data c (0).
We have also obtained a solution of these model e equations.
The characteristic equations (4.48)-(4.50) do not take into account the symmetry of the fluid frame group velocity surface about the magnetic field.
All of these terms are expressed as functions of through the energ y equations (3.1a)-(3.1d).
The system of the evolution equations, (2.6)-(2.8), will be the basis of the analysis that follows.
The coefficients of the wave equations depend on time through the wave vector, which includes the stretch effect by the rotation shear.
We conclude this introduction with a statement of the gover ning equations.
