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1.
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不过，在分析交流电路时，重要的是不仅要考虑相量的幅值，还要考虑相量的方向。
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2.
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在对复卷机控制系统的改造中，我们用交流传动代替直流传动，用变频器对交流电机进行调速控制。
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3.
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使用时仅需外配一只电位器既可实现交流电功率调节，在许多应用场合中可代替笨重的接触式调压器。
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4.
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高速度、大卷装、交流电机直接拖动经轴，并由PLc控制，变频器实现无级调速，恒线速卷绕。
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5.
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阐述了变频调速技术在采煤机中的应用,介绍了交流电牵引采煤机工作原理及发展趋势.
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6.
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变频空调控制器直接安装在交流电机。
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7.
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不过，在分析交流电路时，重要的是不仅要考虑相量的幅值，还要考虑相量的方向。
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, 本机采用三相交流电动机经蜗杆蜗轮减速箱及三角皮带传动导布辊，再经导布辊，经一对齿轮传动摆布斗。
※ "交流电"造句
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怎祝网汉语词典查词提供。