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从上式可以看到，总能量除了两个电感各自产生的磁场能外，还额外多出一份互感能量 ，跟电感飞轮的磁场能类似，互感能量的本质也是电磁惯性，我们可以想象，在两个电感飞轮中间增加了一个小飞轮，并且这个小飞轮用皮带分别与两个飞轮连在一起。因为飞轮的轮动方向（电流方向）相同，增加的飞轮相当于增加了整个系统的电感惯量。
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企业经营初期的工作室/公司，公司规模小、人员少，大多数是由一个可靠人员负责全部的公司后端工作，也就是所谓的人事行政全盘。岗位职责大多被定义为：招聘、考勤、发工资、物资管理、活动策划、接待等基础性服务工作。
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The expression "free, white, and twenty-a single" goes back again at least somewhat farther then 1854, when the initial by 3rd editions of
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从上图可以看出，因为存在励磁电感支路，拥有电抗性，全耦合变压器必然会改变输入信号的相位，在电路分析中，要把励磁电感当作只会自感的普通电感，考虑进去。
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我们需要检查两个线圈的物理缠绕方向，然后利用楞次定律与右手准则来判定感应电压的极性。但是，电路图中画不出线圈的缠绕结构，为了简化，我们常常采用同名端规则，即在两个磁耦合线圈的一端标上一个圆点，表示电流由该点流入线圈时产生的磁通方向一致（磁通相助，或磁力线重合），如下图所示，红线为互为同名端：
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为了便于分析计算，我们可以把理想变压器拿掉，只需要把二次侧的阻抗等效变换到一次侧即可（除以n²），这就是变压器的 T 型等效电路：