与手机的距离增加后，功率(以及用户射频辐射接触量)迅速衰减。
The power (and hence the radiofrequency exposure to a user) falls off rapidly with increasing distance from the handset.
针对压制干扰和质心干扰的特点，分别建立了噪声干扰模型、信号功率衰减模型和质心干扰模型。
To counter the characteristic of suppress jamming and center of mass jamming, this paper establishes the models of noise jamming, signal power attenuation and center of mass jamming.
一种是衰减比例控制模式，另一种是功率控制模式。
One is attenuation control mode and the other is power control mode.
可能就需要一个放大器或衰减器，以确保通过开关传输所需的功率。
An amplifier or attenuator may be needed to ensure that the required level of power is transmitted through the switch.
衰减系数平均功率随距离的延长而降低的比率。
Attenuation Coefficient The rate at which average power decreases with distance.
采用垂直入射具有金属衬底的均匀等离子体模型，对不同入射频率的电磁波的衰减以及总出入射功率比进行了数值模拟。
In a model with vertical incidence of plane electromagnetic wave into plasma slabs with metal underlay, the attenuation of electromagnetic wave and reflected power are deduced.
该系列产品具有频率范围宽、驻波系数低、衰减精度高、体积小、功率大、抗烧毁性能好等特点。
The serial product features include wide frequency band, low VSWR, high attenuation accuracy, small dimensions, high power, excellent capacity in anti-burnout etc.
为了满足微波化学反应对功率可变的要求，设计了高功率可调衰减器。
To vary the power of microwave chemistry reactions, a high-power variable attenuator is designed.
实验获得了激光穿过浑水的功率衰减系数和相干性变化。
The power attenuation coefficient and the change of the coherence of the laser through the sediment-laden water are obtained in the experiment.
使光路在传导的过程 中损失最小，避免传统裁床由于光路传输问题而造成激光切割功率的大量衰减。
The light path in the conduction process loss, avoid the traditional cutting bed due to optical transmission problems caused by large attenuation of laser cutting power.
此外，推导出波导tm、TE模的传输功率、损耗功率、衰减常数、等效阻抗等特征参数的边界元公式。
Furthermore, the formulae of transmitted power, loss power, attenuation constant and equivalent impedance for TM and te modes are deduced.
这种高功率薄膜衰减器系列具有卓越的高频特性。
This high power thin film attenuator series exhibit excellent high frequency characteristics.
在此基础上提出了旨在减小杂散电平的电路优化设计方法，其中包括在满足上变额总增益要求的条件下，电路各级增益或衰减的配置、本振功率的确定等，最后给出应用实例。
On this base, the optimization of circuits for decreasing the spurious level including determination of stage gain. loss and LO power is proposed. Finially, the application example is given.
仿真研究了传输信道和光功率对光码分多址系统性能的影响，分析了传输距离、光纤色散系数、光纤衰减、入纤光功率等与误码率和Q值的关系。
The influences of length, dispersion index and attenuation index of transmission fiber and incident optical power on ber (bit error rate) and Q value of the system is analyzed.
这种光衰减器是由电磁驱动插在两对准单模光纤间隙中的挡光片来实现光功率的衰减。
The device consists of an electromagnet moving ferronickel optical shutter interposed in a fiber gap, and it's actuation causes optical attenuation.
例如，总是需要的过滤器，以对带外的信号鉴别和衰减下来，以非常低的水平，同时保持全功率在感兴趣的频带。
For example, filters are always needed to discriminate against out-of-band signals and attenuate them down to very low levels while preserving full power in the bands of interest.
本产品是一种新型高功率节能光源，它具有亮度高、衰减小、寿命长、可靠性高等优点。
The product is a new energy-saving lighting source, with the performance of high brightness, low attenuation, long lifetime and high reliability.
光功率的视频区可规定衰减和着色功能。
Optical power at video area can be set by attenuating and shading functions.
结果表明：燃料温度变化相对于功率的变化缓慢且滞后，燃料温度反应性负反馈不能及时抑制功率的变化是形成系统参量产生衰减振荡的主要原因。
The results indicate that fuel temperature changing more slowly than nuclear power makes reactivity negative feedback not to restrain power changing, and then power concussive progress comes to being.
实验结果表明，它可将激光输出功率起伏由60%左右降到5%以下，并且此装置可作为线性很好的光衰减器。
Experimental results show that it can reduce the fluctuation of laser output from about 60% to 5%, and it can also be used as a linear laser attenuator with good performance.
该光纤耦合模块连续工作500小时没有发现明显的功率衰减，并且输出功率经温度循环和振动冲击后具有较好的稳定性。
The output power is very stable after the temperature cycling and vibration test. No apparent power decrease has been observed as the device working continuously for 500 h.
通过甄选荧光粉、硅胶以及配比，制备出显色指数(CRI)为95的高亮度、低衰减的大功率白光led。
By selecting the phosphor, silicon and mixture ratio, high-power white LED with high brightness and low attenuation is prepared, and the color rendering index (CRI) reaches 95.
焊接功率也是负指数衰减函数，控制规律简便，有利于实现波控法和熔滴控制等。
The bonding power of this welder also has a negative decreasing exponential curve. This control rule is easy and helps to realize waveform control method and droplet control.
研究中发现最近50年偶极矩仍在继续衰减，空间功率谱的变化也呈减小趋势。
Results shown the continued attenuation of the dipole moment in the last 50 years, and the variation of spatial spectrum of geomagnetic field continuously decreased.
MDI的高功率衰减器结合最大的冷却效率，同时拥有优良的频率和准确的特点。
MDI's high power attenuators combine maximum cooling efficiency, along with excellent frequency and accuracy characteristics.
由于公路衰减导致转换率下降、输出功率降低，从而影响系统的稳定性，这是客户最大的担忧。
Our clients are mostly concerned with project systematic stability which would be damaged by degradation on conversion rate and power output.
描述：HA9可编程衰减器是一种高分辨率，扩展范围，功率计和测试一般测试和实验室工作的可编程衰减器的理想选择。
The JDS Uniphase HA9 PThe JDS Uniphase HA9 Programmable Attenuator is a highresolution, extended-range, programmable attenuator ideal for testing power meters and for general test and laboratory work.
结果表明，衰减云母陶瓷具有吸收量大、 热稳定性高、易于机械加工等特性，是一种新型的大功率微波吸收材料。
Results show that the mica ceramicattenuation material is a kind of new high microwave absorbing material which poss…
结果表明，衰减云母陶瓷具有吸收量大、 热稳定性高、易于机械加工等特性，是一种新型的大功率微波吸收材料。
Results show that the mica ceramicattenuation material is a kind of new high microwave absorbing material which poss…
应用推荐