The emission part adopts the most advanced frequencies synthetic technique, having stable emission frequency.
发射部分采用最先进的频率合成技术，发射频率稳定。
Since then, the term "water hole" has been used to refer to searches at or around the hydrogen emission frequency.
自那时起，“水洞”及氢元素放射频率周围被用于相关的搜寻。
The emission frequency of the Karman vortex street occurred in series from the blades and tongue is varing with the running condition.
将流程泵叶轮叶片和压水室的隔舌看作旋涡发生体，在不同运行工况下在叶片后缘以及隔舌两侧串联发生的卡门涡街的发射频率是不同的。
Through compaction hardness and analog shear rock failure test to drilling core, the paper discusses the possibility of discriminating downhole rock type by using rock acoustic emission frequency.
通过对钻井取心岩样压入硬度及模拟剪切的破岩试验，探寻利用岩石的声发射频率来判别井下岩石类型的可能性。
These include enhanced emission of infrared (IR) radiation from the earthquake epicentre, as well as anomalies in low-frequency electric and magnetic
包括从地震震中传出来的经过加强的红外辐射，以及不正常的低频电磁现场数据。
At last, we recomposed some frequency band of wavelets, and the results can efficiently extract the features of acoustic emission signal.
最后通过对能反映源特征的频带信号进行重构，这样能更好更有效的提取声发射信号的本质特征。
Electromagnetic absorbing materials with high frequency and high loss are required to absorb the noise energy, aiming at restraining the electromagnetic leak induced by high-frequency emission noise.
为了抑制高频发射噪声引起的电磁波泄漏，就需要开发频率高损耗大的电磁波吸收材料，有效地吸收噪声能量。
The noise emission can be also controlled in this way in high frequency range (Fig. 11 and Fig. 12).
在高频范围的噪声辐射也可通过此方法控制（图11和图12）。
Using field emission cathode, X ray source can be made with several advantages: smaller volume and brighter, high frequency response, in-time turning on, etc.
采用场发射阴极的X射线光源具有体积小，辐射强度高，频率响应快，可以随时开启，无需预热的优点。
The characteristic of linear and nonlinear responses between arc excited ultrasonic emission and excited frequency was realized by the received signal from the acoustic to the ultrasonic spectrum.
对受激电弧的声发射信号分析表明，从音频到超声频带，电弧声发射与激励频率之间存在着线性响应和非线性响应特征。
It is the natural frequency of emission of the hydrogen atoms in space.
这是空间氢原子“释放”的自然频率。
A system of high frequency electronic circuit was used in the teaching and experiment concerning the high frequency emission.
一种高频电子线路的实验系统，用于高频发射的教学与实验。
Due to the uneven distributions of both the emission sources and the wind frequency, air quality from different wind sectors could be very variable.
基于排放源以及风频的不均一，不同扇区来的空气质量能有很大变化。
This paper mainly analyzed the natural frequency of a gun and the emission stress in the key parts of a gun when it is in lunch process.
本文分别分析了火炮的固有频率和火炮在发射过程中关键零部件的发射应力。
This paper introduced the application of infrared ray, supersonic wave, high frequency, laser, radioisotope, microwave and acoustic emission technology to wood industry.
介绍了红外、超声、高频、激光、同位素、微波、声发射、计算机等近代技术在木材工业上的应用概况。
To a great extent, the effect of twinkle jamming lies in the distance between the emission sources and the twinkle frequency.
闪烁干扰的效果在很大的程度上取决于发射源之间的距离和闪烁频率。
Weld quality monitoring methods by magnitude and frequency characteristics of the light emission were proposed in this paper.
提出了利用强度和频率特征对焊接质量进行监测的方法。
Specific frequency used by inductively coupled plasma emission spectroscopy, X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, cyclic voltammetry methods.
具体采用了电感耦合高频等离子体发射光谱、X射线衍射、拉曼光谱、X射线光电子能谱、循环伏安测试手段。
The results indicate that the effective electric field (e), the width of the emission region and the distribution rate in voltage are frequency dependent.
指出了发光区有效电场强度、发光区的宽度及电压分配系数等都是与频率有关的物理量。
The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band.
声发射源与接收讯号传感器间的距离以及环境噪声的电平是选择频带的主要依据。
It is the natural frequency of emission of the hydrogen atoms in space and was discovered by us in 1951; it must be known to any kind of radio astronomer in the universe.
它是人们于1951年发现的太空氢原子的天然发射频率，宇宙间任何一种射电天文学家都必定知道它。
Light emission from the plasma in laser welding of zinc-coated plates when there appeared pinhole in the weld were analysised on magnitude and frequency ranges.
对镀锌板激光拼焊过程中焊缝上出现孔洞时的等离子体光信号进行了幅域和频域分析。
The frequency, strength and energy of acoustic emission are concerned with rock mass fracturing.
岩体声发射的频度、强弱及高能事件与岩体的破坏过程密切相关。
It also showed that the emission rate of sulfur accorded with the climate and the frequency of acid rain of Guangdong province.
其排放速率与广东省的自然条件相关，与广东省酸雨频率吻合。
Not only can the fractal dimension characterize the frequency of acoustic emission but its least value often predicts a large breakage.
分形维数不仅可以表征声发射的频度，而且分维最小值往往预示着一个大破裂的发生。
This paper makes a brief discussion on the harm upon human health by radio-frequency electromagnetic field and electromagnetic contamination problems of small power television emission antenna.
本文就射频电磁场对人体健康的危害以及小功率电视发射天线的电磁污染问题作了简要的论述。
The results show that the frequency response characteristics of VCSOAs are influenced by the optical pump intensity, the input optical power and the spontaneous emission factor.
结果表明，VCSOA的频率响应特性受抽运光强度、输入光功率以及自发辐射因子的影响。
Spontaneous emission can be totally suppressed or strongly enhanced depending on the relative position of the resonant frequency from the edge of the photonic band gap and the photonic mode density.
通过原子上能级与光子频率带隙边缘的相对位置或者光子态密度，可以抑制或增强原子的自发辐射。
The results show that THz emission spectra are enhanced by the applied electrical and magnetic field, while their frequency components and bandwidths are not changed.
实验表明，太赫兹时域发射光谱和频谱在外加电场、磁场作用下都有增强，但是所发射的频率成分和带宽都没有改变。
The results show that THz emission spectra are enhanced by the applied electrical and magnetic field, while their frequency components and bandwidths are not changed.
实验表明，太赫兹时域发射光谱和频谱在外加电场、磁场作用下都有增强，但是所发射的频率成分和带宽都没有改变。
应用推荐