SK Telecom Co. said subscribers can pay 3, 000 won (US.50) to download a sound wave that is inaudible to human ears but annoys mosquitoes within a range of three feet.
韩国鲜京电讯公司表示，定制此项服务的用户只需花3000韩元(合2.50美元)便可下载一种声波。 这种声波可以在三英尺的范围内驱赶蚊虫，而人耳却听不见。
SK Telecom said subscribers can pay 3,000 won (US.50) to download a sound wave that is inaudible to human ears but annoys mosquitoes within a range of three feet.
韩国鲜京电信(SK)表示定制用户可以花费3000韩元(合2.54美元)下载一种声波，这种声波人耳察觉不到，但可以在3英尺范围内驱赶蚊虫。
The results show that there exists a density window for lower hybrid wave current drive (LHCD), i. e, LHCD would be achieved only within a certain range of plasma density.
结果表明，存在着驱动电流的密度窗口，即仅在一定的等离子体密度范围内才能驱动电流(通常在理论和实验上仅注意到驱动电流的密度上限)。
On the bases of analyzing triangle wave form modulated LFM, the method of using DDR (Dual Channel Directional Doppler range) technique to eliminate the influence of speed to range is presented.
在分析三角波调制的线性调频信号的基础上，提出了用DDR技术消除速度对测距的影响方法。
The results of the experiment prove that the system has high stabilization, wide range in adjusting speed and small content of the wave in harmony, so it has a certain practical value.
实验结果表明，该系统稳定度高，调速范围宽，谐波含量小，具有较强的实用价值。
The flow-induced self-sustaining oscillation and standing wave resonance of protruding and trap cavities are studied at the low speed range.
本文研究了低流速范围内突出式和陷落式圆柱形腔的流激自持振荡和驻波共振问题。
These mantle body wave data are used to investigate the range of variations in the travel time residuals which indicate the degree of mantle heterogeneity.
我们利用这些高精度的走时数据研究了地幔体波的走时残差的范围及地幔非均匀性的强度。
The results in this thesis enrich the application range of media wave theory and the homotopy methods application in inversion problems, which are of great theoretical and practical significance.
本文的研究结果丰富了介质波动理论和同伦方法的应用范围，对促进正、反演在工程中的应用具有一定的理论意义与实际价值。
Through controlling the vibration amplitude and direct current component of the driving wave for the varifocal mirror, we can obtain the different depth range.
通过控制变焦镜驱动波的振幅和直流成份，可获得不同的深度范围。
LFMCW (Linear frequency Modulation continuous wave) radar is a radar system which can get the information of range and velocity through modulating the frequency of continuous wave.
线性调频连续波雷达是一种通过对连续波进行频率调制来获得距离与速度信息的雷达体制。
The wave band in each kind of long-distance range ground communication or the radar work, can not apply.
该波段在各种远距离地面通讯或雷达工作中，均不能应用。
There was bigger wave range in activity of SPS and SS in control and the raising trend along with the fruit ripen, but the change wave in bagging fruit is not big during the whole growth period.
对照果实SPS和ss活性波动幅度大，SPS活性随着果实成熟呈上升的趋势，ss活性上升不大，而套袋果实SPS和ss活性在发育期间变化比较缓和。
Recently, the researching range of catalytic wave extends to organic compound.
近几年来，催化波的研究已扩展到有机化合物范畴。
According to wave motion theory, finite element mesh size satisfying the needs of engineering calculating precision is relevant to the upper limit of frequency range of random (response) problems.
根据波动理论，满足随机响应工程计算精度要求的有限元网格大小与待求高频随机响应问题的频率范围上限有关。
Obviously, the regular crimp wave provides a mechanism for short-range entanglement of the ratchet type.
虽然，有规则的卷曲波纹能使纤维间短片段内彼此纠缠接触，产生棘轮式。
When the detection range of the IR thermal imager is calculated by using NETD, the target radiation brightness difference must be calculated in the operating wave band.
在采用NETD计算红外热像仪的探测距离时，需要计算目标在热像仪探测波段范围内的辐射亮度差。
Using the ultrasonic wave detector to probe the flexible range of the extraction tunnel, grasping the rule of deformed tunnel directs the supporting design of the tunnel bolt.
利用超声波探测仪探测回采巷道的松动范围，掌握巷道的变形破坏规律，以此指导巷道的锚杆支护设计。
This paper introduces property and feature of PIC16C711, analyses theory of measure distance by ultrasonic wave, gives hardware circuit and software design of range finder for back a car.
介绍了PIC 16C711的性能和特点，分析了利用超声波测距的原理，给出了应用pic 16 C 711设计汽车倒车测距器的硬件电路和软件设计。
The applications of the Kalman filtering algorithm in data processing (range and speed) of quasi continuous wave radar are studied. A new adaptive Kalman algorithm is realized.
主要完成卡尔曼滤波在准连续波雷达数据处理(距离和速度)中算法应用研究，实现一种新型自适应卡尔曼滤波算法。
The frequency range of R-wave has been determined by use of frequency analysis.
并且根据频谱分析的方法确定了瑞利波的频率分布范围。
The experiment results prove that the power supply has good sine wave function, and widely apply range. it efficiently improves testing precision of core loss.
实验结果表明该电源具有良好的正弦波形，有较广的适用范围，能够有效地提高铁心损耗测试精度。
The characteristics of the wave function are insensitive to the defect energy over most part of the energy range in the gap.
波函数的以上特征与禁带中部能量位置关系不灵敏。
The methods, technology and the applied range of shear wave exploration are summarized.
概述了横波勘探的方法技术及应用范围。
The results show that no matter the range of the implanted ion itself or secondary effect sphere of secondary electrons, radical diffusion, thermal spike, cascade atoms and shock wave etc.
结果表明：无论是注入离子本身的射程，还是次级电子、自由基扩散、高温热穗、级联原子和冲击波等次级作用范围都无法触及表皮下面的胚细胞。
Super resolution for target range and azimuth Angle of a novel bistatic HF-Surface Wave Radar (HF-SWR) is investigated.
本文研究了一种新的高频地波超视距雷达目标距离以及方位角超分辨问题。
Nanosized iron alloy powders exhibit fantastic properties in magnetism, catalyze, wave absorption, and lead to an even more diverse range of applications.
纳米铁合金粉末在磁性、催化和吸波等方面都展现了优异的特性，具有广泛的应用前景。
Iron nanoparticles exhibit fantastic properties in magnetism, catalyze, and wave absorption, and lead to an even more diverse range of applications.
纳米铁颗粒在磁性、催化和吸波等方面都展现了优异的特性，具有广阔的应用前景。
Increase of detection range and fast precision tracking are main difficulties in weak aerial target detection for High Frequency Surface Wave Radar (HFSWR).
增大探测距离、快速精确跟踪是高频地波雷达探测飞行小目标所面临的主要困难。
When the defect of pile body is located at the range of one - dimensional blind areas, the wave form of the reflected wave distorts and shows the characteristics of strong amplitude and low frequency.
当桩身缺陷位于一维“盲区”范围时，反射波波形畸变，并呈强振幅，低频率之特征。
When the defect of pile body is located at the range of one - dimensional blind areas, the wave form of the reflected wave distorts and shows the characteristics of strong amplitude and low frequency.
当桩身缺陷位于一维“盲区”范围时，反射波波形畸变，并呈强振幅，低频率之特征。
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