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把感应系数引入电路的电用装置。
An electrical device that introduces inductance into a circuit.
比如感应系数法、能量变换法、图解法、模拟法、经验法、有限元法等。
For example, induction coefficient method, energy transformation, graphical method, simulation, finite element method, and so on.
如果一个线圈在一定的频率下对电流的阻力较大，那它的感应系数便大。
If a coil offers a large opposition to the current flowing through it at a certain frequency, it is said to have large inductance.
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