The selection of the insulator applied for a large power very low frequency transmitting antenna were studied.
本文对大功率甚低频发射天线用绝缘子的选型进行了研究。
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。
This paper briefly discusses the very low frequency (VLF) electromagnetic technique and takes Shancheng gold mine for example.
简要叙述了甚低频电磁法的方法技术，并以山城金矿为例。
The very low frequency electromagnetic method (VLF-EM) has such advantages as portable instrument, simple method, economical and high efficiency.
甚低频电磁法(VLF - EM)，具有仪器轻便、方法简单、经济高效等优点。
When some alleles have very low frequency in the gene frequency matrix, there would be "horse-shoe effect" in the Scallergram of correspondent analysis.
当基因频率矩阵中存在稀有基因时，其对应分析的散点图则呈现明显的“蹄型效应”。
This breed is also known for his ability to foretell storms and avalanches, perhaps because he may hear very low frequency sounds that are beyond our ability to hear.
这个品种有能力预测风暴和雪崩，可能是因它们能听见非常低的频率，甚至低于我们能力所能听到的。
Existing predominantly, in the Very Low frequency part of the radio spectrum that corresponds with the audio frequency range, we can experience this activity as audible sound.
尽管这种活动主要存在于无线电声音频率分区的超低频区域，我们还是能够通过听觉来捕捉到它。
This paper deals with a digital speech communicator of very low frequency and low bit digital communication based on software ratio, which USES the technique of QPSK and FEC coding.
本文论述了一种基于软件无线电的甚低频低码率语音数字岩层通信机，它采用了QPSK调制和FEC信道编码技术。
SH lighting is very low frequency. You can't have sharp lighting transitions with SH lights. They are also only affecting the diffuse lighting (too low frequency for specular highlights).
球面调和光只有很低的频率。球面调和光不能产生锋利的照明过渡。它们也只会影响散射光照（对高光来说，球面调和光的频率太低了）。
Notice the odd roughness of the dense histogram in the region around 7-12 degrees, with both very high frequency of some measurements and unexpectedly low frequencies of others.
注意，在稠密直方图中 7-12度附近出现了偶然性的不平滑，有一些温度频率非常高， 也有一些频率出人意料地低。
At ground level, such vibrations-akin to low-frequency sound waves-are very small, only about the size of the vertical motions that produce them.
在地表，这种类似于低频声波的振动非常小，只相当于造成它们的垂直振动的幅度。
Compared to Internet data, the characteristics of financial data is also very prominent, such as low frequency, but higher quality.
相比互联网数据，金融数据的特点也很突出，如频率较低，但质量较高等。
Based on T type filter, the new ballast can achieve a wide dimming range with a very narrow frequency variation range, and it can operate with low lamp current crest factor.
基于T型滤波器的调光方法，能在很窄的工作频率范围内实现深度调光，同时具有灯电流波峰因数低的优点。
The use frequency of the character yin appears very low in common speech and only appears as morpheme in the words.
“引”在现代汉语普通话里使用频率很低，而且只作为语素出现在词语里。
Since heart sounds are generally of low frequency component and very faint, this method, depending on doctor's knowledge and experience, is subjective and sometimes is unreliable and ineffective.
由于心音的频率较低而且非常微弱，医务人员通过听诊器根据自己的知识和经验对心音做出主观分析判断并不一定可靠。
The HMM based multiple frequency line tracking algorithms of work well under very low SNR, except for a high complexity of computation and for generally unnegligible quantization error.
基于隐马尔可夫模型的多频率线跟踪算法，能在很低的SNR环境下工作，但量化误差较大，和计算量大。
The inverter runs at low frequency when driving fan can play a very good effect at saving energy.
通过变频器驱动风机，让变频器运行在低频率下，起到了很好的节能效果。
Its vertical frequency response is very low in a sufficiently wide frequency range.
它具有极低的垂向幅频响应和相当宽的频带。
The traditional neural network correction has a good adaptivity to the noise. But with a stronger low frequency space noise, the correction effect is very poor.
传统的神经网络非均匀性校正算法对噪声具有较好的自适应性，但当空间低频噪声较大时，校正效果明显下降。
When Doppler frequency shift is very low for the very slow speed of a ship drawing alongside, it is rather difficult to detect ship's speed with a general CW Doppler Radar.
由于船舶靠岸速度很低，多普勒频移很小，利用一般连续波多普勒雷达检测船舶靠岸速度，困难较大。
The shortcoming of traditional filter media, such as high and fluctuating resistance, low efficiency for very small size dust, high frequency of regeneration etc.
使用传统滤料的袋式除尘器在操作过程中存在过滤阻力高且随时间波动大、对于微细粉尘过滤效率低、反清洗频率高等缺点。
This paper presents a low phase noise indirect frequency synthesizer, which used in airborne fire control radar and is required to operate in a very harsh environment.
提出了一种间接合成的低相位噪声频率综合器的设计，该频综器用于某机载雷达中，从而要求其在极其恶劣的环境中同样具有良好的性能。
The utilization rate of licensed spectrum is very low in the time domain, frequency domain and space domain, while the unlicensed band is overcrowded seriously.
大部分授权频段在时域、频域和空间域的利用率很低，而公共频段出现了严重的频谱拥挤。
The vibrational modes and spectrum are very different if the free boundary condition is adopted, and the spectrum is divided into low, medium and high frequency branches.
若采用自由边界条件，则模花样和振动频谱完全不同，这时只能分为低频支、中频支和高频支。
The radiation efficiency of the radiation modes falls off very rapidly with the increase of modes order at low frequency.
由于在中、低频时，声辐射模态对应的辐射效率随着模态阶数的增加而迅速降低。
Therefore, supergain hydrophone array, particularly the small-sized circular array, is very good for improving the detection performance of low frequency passive sonar.
由于超增益阵具有尺度小、空间增益高的特点，对于改进低频被动声纳的检测性能具有重要的意义。
Therefore, supergain hydrophone array, particularly the small-sized circular array, is very good for improving the detection performance of low frequency passive sonar.
由于超增益阵具有尺度小、空间增益高的特点，对于改进低频被动声纳的检测性能具有重要的意义。
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