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- Low Frequency Timing Assembly 低频定时装置
- The generating of pseudo random sequence is one of the key subjects to realize the spread spectrum technique upgrade for BPC low frequency time code radio station. 伪随机序列的产生是实现BPC低频时码发播台扩展频谱技术升级的一个重要环节。
- 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。
- Thus research has been going on for some time in the area of low frequency active (LFA) towed array sonar. 如此研究一直在低频率活跃的 (LFA) 被拖的排列声纳的区域中继续有一些时间之久。
- The abnormal colours of seedlings turned a low frequency. 颜色异常的苗木出现频率较低。
- Wave speed equals frequency times wavelength. 波速等于频率乘以波长。
- 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.
- He spends his spare time assembling stamps. 他在闲暇收集邮票。
- At the same time the insertion lose of water muffler in the low frequency was measured by the measuring chamberlet method . 通过海水消声器试验测量台架，利用测量小室验证了混响箱法难以准确测量海水管路系统中的低频流噪声；
- 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。
- When the porosity and pore diameter reduced,the sound absorption curve moved to the low frequency zone and the frequency bandwidth increased at the same time. 随着孔隙率、孔径的减小,多孔铝的共振吸声系数有所下降,吸声频谱曲线向低频方向移动,且频带宽度展宽。
- This effect is obvious at lower frequency band. 这种效应在振动低频区段更为显著。
- 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。
- Time clock signal source directly fetches from clock signal of PCI bus in the computer system or signal generator, which can generates high frequency time clock signal. 该时钟信号源直接取自于该电脑系统中PCI总线的时钟信号或是一可产生高频时钟信号的时钟信号产生器，用以供应该计数电路所需的输入时钟信号。
- 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。）
