以下为句子列表：
英文: A new envelope demodulation method based on empirical mode decomposition (EMD) is proposed to make up the limitation that meaningless frequencies often arise in the envelope spectrum of conventional envelope demodulation method.
中文: 摘要提出了一种新的调制信号解调分析技术，来抑制传统的包络解调方法中经常出现的无意义的频率成分。
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英文: Engineering cases indicated: to apply the techniques of resonant demodulation can pick up micro shock pulses of hearing fault, and through analyzing the impact power fault vibration signal characteristics in the Fourier chart of the resonant demodulation,
中文: 工程实例表明，使用共振解调技术可以有效提取轴承故障微小脉冲冲击，通过在共振解调傅里叶谱图上分析冲击功率故障振动信号特征，可以较容易地进行故障诊断。
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英文: Ich habe die Modulation und Demodulation des analogen und digitalen Signal gelernt.
中文: 我学了模拟和数字信号的调制与解调。
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英文: Key Products : Fiber Bragg Grating-line temperature monitoring system, FBG sensor demodulation devices and sensors. Widely used in the power, petrochemical temperature, tunnels, bridges, dams and other large infrastructure safety monitoring.
中文: 公司主导产品：光纤光栅温度在线监测系统、光纤光栅传感解调仪及传感器。广泛应用于电力、石化测温、隧道、桥梁、大坝等大型基础设施的安全监测。
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英文: The chip LM567, which can transmit the modulation signal and receive the demodulation signal, realizes the function that the speech signal and the control signal are multiple transmitted on power line.
中文: 其以LM567为核心，通过调制发送和解调接收，在电力线上实现了语音信号和控制信号的复用传输。
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