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- low frequency absorption 低频吸声
- A new method,which the ultra low frequency dielectric spectroscopy can be obtained by the absorption current with FFT,was established. 本文描述了一种利用FFT,从介质吸收电流得出其超低频介电频谱的新方法。
- The results showed that the OSB wallbord composed by OSB,air and glass wool had a good sound absorption property,specially for low frequency sound. 结果表明，由定向结构板、空气层、玻璃棉构成的复合墙体在低频率范围内会出现共振现象，吸声性能比单层定向结构板有显著的增加，但在高频率范围内变化较小；
- 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。
- 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。
- 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.
- 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。
- 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。
- 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。
- Radio systems operating in the UHF range more susceptible to atmospheric absorption, and multipath distortion and shadow effects than the radio system, a lower frequency. 然而, 收音机在这一范围的系统已经证明他们自己相当可靠而且从竞争较不倾向于冲突服务。
- 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。
- In audio, a very low frequency oscillation often resulting from a positive feedback path in an amplifier system. 在音响设备中出现的振荡频率极低的低频振荡，常因放大系统的正反馈回路引起。
- Starting with your EQ flat, remove ALL be bottom end by turning the low frequency control to full cut. 在开始得时候;让你得eq保持平治(零)然后对低频做低切.
