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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Variable structure sliding mode controller has been applied gradually in the electric drives because of its advantage of robust and easy realization.

滑模变结构控制器由于具有响应快、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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Mr Mallon is ostentatiously green (he drives an electric two-seater car) yet tough.

马龙以关注环保自居（他驾驶一辆双座的电动车）却很强硬。

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But the very thing that drives electric powered aircraft is also the biggest hurdle.

VOA: standard.2010.08.11

These advances have allowed shipbuilders to reduce the size and weight penalties associated with electric drives.

ECONOMIST: Electric ships

Instead of the planned 1000 vehicles more than 2000 smart fortwo electric drives are being produced in Hambach.

ENGADGET: Third generation Smart Fortwo ditches Tesla powertrain, gains two wheeled cousin

America's Congressional Research Service reckons that installing electric drives on naval ships can cut fuel use by 10-25%.

ECONOMIST: Electric ships