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1、

Application of DSP processor in synthesis of complex low frequency signal

DSP处理器在复杂低频信号合成中的应用

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2、

Low frequency, wide band, high power transducer is a key technology of modern underwater acoustics.

低频宽带大功率换能器是现代水声发展的一项关键技术.

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3、

The Mechanism of Small Deep Hole Cutting by Super Low Frequency Vibration

微小深孔的超低频振动切削机理研究

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4、

There are many merits for focused liquid-filled spherical reflectors: email geometric size, high target strength, excellent frequency property, homogeneous directivity, low cost and easily placed in the sea.

充液聚焦球形反射体具有几何尺寸小、目标强度大、频率特性好、方向性均匀、成本低、海上布设方便等优点，是目前标准反射体中较好的一种。

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5、

It is put forward to replace the simple harmonic torsional vibration mechanism with the oscillating guard bar mechanism in low frequency vibration tapping machine. The possibility and feasibility of replacement is analyzed.

提出用摆动导杆机构近似替代低频振动攻丝机中的简谐扭振机构，对近似替代的可能性和可行性进行了分析。

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6、

Objective: The purposes of this study was to analyse the significant of low frequency air-bone gap in enlarged vestibular aqudeduct ( EVA) patients according to the pure tone audiogram and the benefit for clinic diagnosis of the EVA.

目的：分析前庭水管扩大（EVA）患儿行纯音测听检查时出现低频骨气导差的比例，探讨纯音测听检查辅助临床诊断EVA的意义。

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7、

Development and Effect Analysed of Tapping Machine at low-frequency Vibration

低频振动攻丝机的研制和使用效果分析

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8、

Research on the Transfer Technique of Low Frequency Power with a High Frequency Transformer

高频变压器传递低频电功率的研究

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9、

Based on the definition of radar tracking target angle velocity maximum and acceleration maximum, relates the feasibility to represent the angle tracking characteristic, and the simulation way of the low frequency error signal is discussed.

基于雷达跟踪目标最大角速度和角加速度的定义，分析了用雷达跟踪目标最大角速度和角加速度表征雷达跟踪性能的可行性，并对角误差信号的模拟方法进行了讨论。

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10、

Study on Low Frequency Characteristic of Direct Torque Control about Double Fed Generator

双馈电机直接转距控制低频特性研究

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11、

DC/ DC Converter Low Frequency Noise and its Measuring Technique

DC/DC变换器低频噪声及其测量技术

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12、

The Biological Effects of Low Frequency Electromagnetic Fields on Cells

生物细胞在极低频电磁场中的效应

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13、

Measurement of bridge dynamic deflection with seismic low frequency vibration transducer

用地震式低频振动传感器测量桥梁动挠度

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14、

High and low frequency instruments for measuring impedance of skin

高频及低频皮肤电阻测量仪

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15、

The biological effect of extremely low frequency ( ELF ) electromagnetic field on human body is a question in dispute.

极低频电磁场是否对人体或生物存在不良影响,一直是学者们争议的课题.

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16、

The thermal designing methods of the low frequency of the electronic equipment

电子设备低频机柜的热设计方法

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17、

A low frequency high power FM scanning acoustic beam transmitting system

一种低频大功率调频声波束扫描发射系统

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18、

Clinical study of treatment of primary osteoporosis by low frequency pulsed electromagnetic fields

低频脉冲电磁场治疗原发性骨质疏松症的临床研究

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19、

The attenuation factor of longitudinal wave was changing linearly, whereas the attenuation factor of the slow shear wave kept nearly constant with a low frequency on the exploration seismic band.

纵波的衰减系数在地震频带内基本上呈线性变化，而横波的衰减系数在地震频带内除低频外基本保持稳定。

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20、

Localization technique of pipeline detecting based on extremely low frequency electromagnetic wave

基于极低频电磁波的管道检测定位技术位置检测器位置传感器

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21、

Program control low frequency pulse treatment caller's input buffer

程控低频脉冲治疗仪调入程序输入缓冲器

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22、

Low frequency stress wave does more damage.

低频波比高频波的危害更大。

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23、

Test methods for general purpose low frequency signal generators

GB/T12180-1990低频信号发生器通用测试方法

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24、

Practice and Reflection on teaching Low Frequency Electronic Circuit

高职《低频电子线路》课程教学实践与思考

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25、

Design and Application of a Low Frequency Mechanical Type Deep-hole Vibration Drilling Device

低频机械式深孔振动钻削装置的设计与应用

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26、

Study on Data Acquisition and Parameter Matching System of Low Frequency Vibration Tapping

低频振动攻丝控制与数据采集及参数匹配系统研究

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27、

The Low Frequency Noise Precision Measurement Equipment Design

低频噪声精确测量装置的设计

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28、

Several Problems of Master Design of the Low Frequency Vibration Tapping Machine Tool

低频振动攻螺纹机床总体方案设计中的几个问题

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29、

Low frequency and low power CMOS LNA design optimization techniques

低频、低功耗CMOS LNA的设计优化技术

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30、

Program control low frequency pulse treatment

程控低频脉冲治疗仪

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