The characteristics of the methods are easy realization, good concealment and low cost.

这种软件加密方法特点是实现简单，隐蔽性好，成本低。

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Its advantages include the unconditional stability and the easy realization of the modelling process.

它的优点在于无条件稳定和模拟过程的简单易实现。

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Sliding mode controller of variable structure has been gradually applied in the electric drives because of its robust and easy realization.

滑模变结构控制器由于具有鲁棒性好、设计实现方便等优点，已被逐步应用于电力传动控制领域。

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That isn't an easy realization to come to, and for the past few years, Teixeira has fought it hard.

WSJ: Teixeira Knows His Limits