The selectivity is reasonably good, even at the high end of the band. A wave trap can be used to null nearby stations.
即使在频率高端，此线圈仍能保持良好的选择性。添加陷波器可以减小强台的干扰。
The measurement and examination of wave trap coil and coupling filter used for power line carrier communication system are an important part to ensure the electric power system operating normally.
为解决现有电力载波通信系统中线路阻波器、结合滤波器的性能测试方法中存在的问题，提出了一种集自动测试、高速采样和数据处理于一体的新型智能式测试系统方案。
The flow-induced self-sustaining oscillation and standing wave resonance of protruding and trap cavities are studied at the low speed range.
本文研究了低流速范围内突出式和陷落式圆柱形腔的流激自持振荡和驻波共振问题。
Studying the regulation of seismic wave in rock and establishing 3d varied velocity field with high accuracy is an important method for improving seismic exploration accuracy and finding thin trap.
研究地震波在岩层中的传播规律和建立高精度的三维变速场，是提高地震勘探精度寻找低幅度圈闭的一个非常重要的途径。
Studying the regulation of seismic wave in rock and establishing 3d varied velocity field with high accuracy is an important method for improving seismic exploration accuracy and finding thin trap.
研究地震波在岩层中的传播规律和建立高精度的三维变速场，是提高地震勘探精度寻找低幅度圈闭的一个非常重要的途径。
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