建立燃气轮机数学模型是船舶动力及其控制系统研制的重要手段，建模的关键在于提高精度和收敛速度。
The mathematic model of gas turbine engine is important for the development of ship power and its control system. The key of modeling is the precision and convergence.
使得姿态跟踪误差系统不仅可在有限时间内从任意状态到达滑动面，而且也可在有限时间内沿滑动面收敛到零，并给出了严格的数学证明。
The tracking error system can not only be controlled to the sliding manifold from any initial state in finitetime but also converge to zero along the sliding manifold in finitetime.
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