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- low frequency damping 低频阻尼
- Besides, the effect of power system stabilizer (PSS) in enhancing the damping during dominant low frequency oscillation mode of power grid is researched. 研究了电力系统稳定器对系统主导振荡模式的阻尼作用。
- In order to restrain low frequency vibration of flexible manipulator, hysteretic damping of assembled flexible link is used to restrain the vibration of flexible manipulator. 摘要为抑制柔性机械臂的低频固有振动，该文提出利用组合结构滞迟阻尼效应来提高柔性机械臂的抑振性能。
- In electronics, undesirable low frequency currents interfering with a desired signal, and usually caused by a poorly screened alternating mains supply. 在电子学领域，一种不希望发生的低频电流，它干扰所要求的信号。通常这种现象是由于交流供电线路屏蔽不良引起的。
- In this dissertation, the accessional devices installed in the large dynamic elements for damping low frequency oscillations are named as the oscillation-damping device. 本文把在系统中各种大型动态元件中装设的用于抑制低频振荡的附加控制器统称为低频振荡抑制器。
- PSS has been proved to be the most economical and effective equipment for damping low frequency oscillation, which can perform well to both the local mode and the inter-area one. PSS 已被证明是阻尼低频振荡的最有效、经济的装置，对本地振荡模式和区域间振荡模式均有很好的效果；
- The abnormal colours of seedlings turned a low frequency. 颜色异常的苗木出现频率较低。
- Laser direct writing of micro-OVD with low frequency templates[J]. 引用该论文 魏国军;周小红;周雷;陈林森.
- Because of power systems being more and more complicated, besides low frequency oscillation by minus damp, there is also chaos oscillation that can not be dispelled by PSS in power systems. 由于电力系统的日趋复杂和庞大,电力系统除了因负阻尼引起的低频振荡外,还存在PSS不能消除的混沌振荡的危机。
- For the properties of high nonlinear, low frequency, low stiffness and small damp of pneumatically driven systems, it is difficult to realize high precision position servo control. 摘要由于气压驱动系统本身具有强非线性、固有频率低、刚度低和阻尼小等特点，实现高精度的位置伺服控制比较困难。
- This effect is obvious at lower frequency band. 这种效应在振动低频区段更为显著。
- If it is a low frequency sound, it is processed as an analog signal. 对低频声进行传统的处理。
- The direction of the low frequency current with maximum frequency was also WSW. 低频流出现频率最多的方向和潮流基本一致。
- Medium SMES (200 MVA) are able to compensate some low frequency disturbance. 中型SMES(200MVA),这类SMES能补偿某些低频度的扰动
- Helmholtz resonator has a good noise eliminating performance at low frequency. 亥姆赫兹共振腔具有良好的低频消声性能,被广泛地应用于低频消声方面。
- Armstrong was forced to use avery low frequency barely above audibility. 当时这样的频率被认为是“高频”，但只不过是现在所用调幅波段的底部而已。
- Peak indicator light and LF (low frequency) switch per mono channel. 每路单声信道具有峰值指示灯及低频切除开关。
- Purpose:Low frequency power amplifier,medium speed switching applications . 用途:用于低频功率放大及中速开关。
- Note: Close woundcoils will resonate at a slightly lower frequency. （注：密绕的线圈将会谐振在稍低的频率。）
- Very little effort has been devoted to the experimental measurement of low frequency combustion response. 在低频燃烧响应的试验测定方面只做了很少的工作。
