semilinear parabolic systems
半线性抛物型方程
半线性抛物型方程组
半线性抛物方程组
半线性抛物系统
拟线性抛物型方程组
degenerate parabolic equations
120 Command Information Systems
128-bit operating systems
2 + 1 dimensional systems
2-D linear continue us-discrete systems
2-D state-delayed systems
2-D systems with time-delays
32-bit operating systems
3-D geographic information systems