For the output regulation problem of slowly-varying linear systems via full information feedback, a sufficient condition of solvability is given.
对于经由全信息反馈的慢变线性系统的输出调节问题，我们给出了解决问题的一个充分条件。
Meanwhile, attention should be paid to technology regulation problem of the private standard, and we shall be vigilant of the intellectual property factors that may influence market competition.
同时，应关注私营标准的技术法规化问题，警惕私营标准中知识产权因素可能对市场竞争的影响。
Axial flow fan is the main ventilation device presently. This paper introduces the application of axial flow fan, settles saving energy problem and air regulation problem.
目前轴流式通风机在煤矿是普遍的主通风设备，文章阐述了变频器在轴流式风机中的应用，以解决主扇调整风量和节能降耗的问题。
Axial flow fan is the main ventilation device presently. This paper introduces the application of axial flow fan, settles saving energy problem and air regulation problem.
目前轴流式通风机在煤矿是普遍的主通风设备，文章阐述了变频器在轴流式风机中的应用，以解决主扇调整风量和节能降耗的问题。
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