研制一种新型超低频垂直隔振系统。
A novel ultra-low frequency vibration isolator is established.
超低频磁场可能对人类致癌。
Extremely low-frequency magnetic fields are possibly carcinogenic to humans (Group 2B).
车辆及舰船的磁场是超低频交变弱磁场。
Magnetic field of ground vehicles and warships is ultra low frequency, alternate and feeble.
超低频磁场对实验室动物致癌性证据不足。
There is inadequate evidence in experimental animals for the carcinogenicity of extremely low-frequency magnetic fields.
用这种超低频测量分析了主要的实验问题。
The main experimental problems are analyzed with the ultra-low-frequency measurements.
本文报道了船用超低频磁场的卫生学调查。
This paper reports a hygienical survey of the ship ULF magnetic field.
论述了国内外各种超低频隔振系统的研究状况。
The results on the study of ultra-low frequency isolator are summarized.
静态电磁场和超低频电场对人类致癌性证据不足。
There is inadequate evidence in humans for the carcinogenicity of static electric or magnetic fields and extremely low-frequency electric fields.
本发明提供了一种超低频磁刺激装置及其工作方法。
The invention provides an ultra low frequency magnetic excitation device and a method for operating the device.
研究证明，某超低频无线电波可影响及制约某生物体。
Researches showed that ultra low amplitude radio waves of certain frequencies may influence and control most processes in the organism.
波形失真度是影响超低频振动计量校准精度的重要因素。
Waveform distortion of super low frequency standard shaker is an important factor which influences the calibration precision.
在特征提取中还考虑了HRV中超低频分量和睡眠的关系。
The relationship between the sleep stage and the ultra-low frequency components of HRV is also considered.
根据超低频电压信号测量的特点，给出了一种精密测量电路。
The paper introduces the precise measuring circuit of ultra-low frequency voltage based on the characteristics of the measurement of ULF.
介绍一种经济实用的用普通磁带记录与回放超低频信号的方法。
An economical technique is presented of conventional tape recording and replay for ultra-low frequency signal.
常用超低频信号发生器的输出只有几种固定的波形，不能更改。
The output of common ultralow frequency signal generator has only a few fixed waveforms which can not be changed.
静态电磁场和超低频电场对实验室动物致癌性的相关数据未提供。
No data relevant to the carcinogenicity of static electric or magnetic fields and extremely low-frequency electric fields in experimental animals were available.
对于安装，需要延长至超低频响应与飞行墙紧凑外壳式托架能力。
For installations that require extended bass response from an ultra-compact enclosure with flying and wall-bracket mounting capabilities.
超低频绝对振动信号参数的检测在工程上有着十分广泛的应用前景。
The detection of ultralow frequency absolute vibration signal parameter has very wide ranges of prospects for application in engineering.
由于生理信号的超低频分量相当丰富，利用电话网络无法直接传送。
Physiological signals can't be transmitted through telephone networks because they are full of ultra low frequency components.
该分析揭示了电力系统产生超低频振荡和倍频振荡的可能性和条件。
It reveals the probability and conditions of extra-low frequency oscillation and double frequency oscillation in power systems.
报道了用超低频脉冲梯度磁场治疗肿瘤的实验研究以及对其机理的探讨。
We have reported the experiment studies on treating sarcoma with ultralow frequency pulsed gradient magnetic field and discussed its probable mechanism in this article.
介绍了由单摆改进而成的倒摆、折叠摆、x摆和锥摆等超低频水平隔振系统。
The inverted pendulum, folded pendulum, X pendulum and conical pendulum ultra-low frequency vibration isolation systems, which are developed from single pendulum, are introduced.
零磁场实验表明传感器在地面接收的超低频电磁波来自地下地层等地质体的辐射。
The zero magnetic field experiment shows that the ULF received by instrument comes from the emission of underground object.
分析了刚度非线性的实现方法及正负刚度并联技术在超低频垂直隔振系统中的应用。
The methods of realization of nonlinear stiffness and applications of combined positive and negative stiffness in ultra-low frequency vibration isolation are analyzed.
本研究提出了一种利用普通的电磁式速度传感器检测超低频绝对振动信号的技术方案。
This research offers the technical scheme of detecting ULF Absolute Vibratory signal by the normal electromagnetism rate transducer.
大象在用耳的同时，还能用脚倾听——研究大象超低频鸣叫地面传播的研究人员如是说。
Elephants may be listening with their feet as well as with their ears, say researchers who are studying how well super-low frequency elephant song moves through the ground.
介绍了超低频主动隔振控制中常用的位移传感器的类型、工作原理、结构特点及适用范围。
The types, principles, features, and applications of displacement sensor used in ultra-low frequency active vibration isolation control are introduced.
充分利用现有的标准仪器，在微机统一控制下，组成一个超低频参数计量的自动测试系统。
An automatic measuring system for measuring parameters in ultra-low-frequency metrology is developed by fully utilizing the existing standard instruments. The system is controlled by a microcomputer.
给出了一类超低频标准振动台非线性运动方程的两种近似解析解——非共振解法和共振解法。
This paper presents two kinds of approximate analytical solution, non-resonance solution and resonance solution, of non-linear dynamic equation based on a type of ultra-low frequency vibrator.
给出了一类超低频标准振动台非线性运动方程的两种近似解析解——非共振解法和共振解法。
This paper presents two kinds of approximate analytical solution, non-resonance solution and resonance solution, of non-linear dynamic equation based on a type of ultra-low frequency vibrator.
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