The magnification change has no influence on boundary frequency while the nonlinearity of damping, time constant and pure time delay are its main influencing factors.
放大倍数不改变系统的分界频率，但阻尼大小、时间常数和纯延时等非线性环节是影响分界频率的主要因素。
The transmitting boundary in time domain has been applied to frequency domain.
本文将时域透射边界应用于频域。
Accuracy of the boundary in frequency do, main is first discussed and demonstrated in terms of one dimensional model of wave motion.
首先讨论了频域透射边界的精度，并用一维波动模型详细论证了它的精度和可行性。
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