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- low frequency threshold shift 低频阈移
- Through definition range of the window and the suppressing threshold, the damage of seismic reflection signals with low frequency can be avoided. 定义面波窗口区域和压制门槛,可以保证低频信号不受损害。
- 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。
- The abnormal colours of seedlings turned a low frequency. 颜色异常的苗木出现频率较低。
- The remaining hearing loss after the exposure that does not fully recover to its preexposure level is known as permanent threshold shift (PTS). 听性脑干反应则分别在噪音暴露前、暴露后、暴露后1天、暴露后2天、或暴露后7天施行。
- 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.
- Aim: To observe the combined effects of four physical factors(noise, lighting, temperature and humidity) on temporary threshold shift (TTS). 目的:观察舰艇舱室环境噪声、照明、温度、湿度4种物理因素联合作用对暂时性听阈偏移的影响。
- If the carrier frequency by changing the method to send binary symbols, is the frequency shift keying (FSK) method, when the "1" when there is low frequency, "0" when there is a high frequency. 如果用改变载波频率的方法来传送二进制符号，就是频移键控（FSK）的方法，当"1"出现时是低频，"0"出现时是高频。
- NIHL can be divided into temporary threshold shift (TTS) and permanent threshold shift (PTS). The TTS can soon recover if we break away from noise exposure. 噪声性听力损失分为暂时性阈移(Temporary threshold shift，TTS)和永久性阈移(Permanent threshold shift，PTS)。
- 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。
- This effect is obvious at lower frequency band. 这种效应在振动低频区段更为显著。
- In the 4th week, compared with that in animals accepting GM, ABR threshold shift was notable in animals accepting GM and L-Arg ( P < 0.05), but it was diminished in group GM and L-NMMA ( P < 0.05). 实验第 4周 ;GM加L -Arg组ABR反应阈升高明显 ;与GM组比较有统计学意义 (P<0 .;0 5 );GM加L -NMMA组ABR反应阈升高较少;与GM组比较有统计学意义 (P <0
- 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
- Method:Fifteen of young men with normal hearing were exposed to 4 kHz short-term pure tone (Level ~ 130 dB SPL) for 3 minutes to analysis the change of DPOAE in details after Temporary Threshold Shift (TTS). 方法：用 130dB SPL的 4 kHz纯音对 15例听力正常人（30耳）进行 3 min的短时暴露，造成听力暂时性阈移后，用ILO－90耳声发射仪记录、分析暂时性阈移（TTS）时DPOAE的幅值、时间序列的特征，并与纯音暴露前进行对比。
- 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。）
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 农业及相关产业增加值 - the added value of agriculture and related industries
