... frequency shift factor 频率平移因子 frequency variation factor 音频波动因数 frequency reduction factor 频率折减系数 ...
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The paper studied the issue of low frequency in shallow parts of cross-hole seismic reflection sections using imaging principle and deduced frequency variation factor.
本文利用成像原理对井间地震反射剖面的浅部频率变低问题进行了研究，导出了频率变化因子。
Based on T type filter, the new ballast can achieve a wide dimming range with a very narrow frequency variation range, and it can operate with low lamp current crest factor.
基于T型滤波器的调光方法，能在很窄的工作频率范围内实现深度调光，同时具有灯电流波峰因数低的优点。
The variation of temperature coefficient of resonator frequency with tolerance factor was discussed.
分析了谐振频率温度系数随容忍因子的变化关系。
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