着重分析了电流参考信号超前角(滞后角)、系统参数和驱动方式对无刷直流电动机系统动态性能的影响。

The influence of the leading Angle (lagging Angle) of the current reference signal the parameters and drive mode of the system to the dynamic characteristics are analyzed.

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与各国纷纷制定无店铺买卖合同的相关立法，加强对消费者的保护相比，我国无店铺买卖合同相关立法则相对滞后。

Compared to other countries who establish legislation system about Non-store retailing contract to protect the consumers, our country's lawmaking has lagged behind those.

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研究滞后广义系统在有界能量外部输入作用下的无源控制问题。

The passive control problem is explored for singular systems with time -delay under bounded energy exogenous inputs.

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