查询词典 high frequency

Through discussing further the reflective and refractive coefficients of line boundary, the features of line boundary are as follows: the attenuation of high frequency band (especially in band of line trap) of transient components generated by fault through line boundary is obvious, whereas the low frequency band (1~10kHz) components are hardly influenced. Moreover, the transient components below 100kHz should be adopted in purpose of outstanding the line boundary and weakening the transmission influence of transmission line.

通过对线路边界的透、反射系数的进一步分析发现：暂态信号的高频段穿越线路边界时将大为衰减，而低频段(1~10kHz)几乎不衰减；为弱化线路的传输影响而突出线路边界的作用，宜选用100kHz以下的信号分量。

Features: high efficiency, small amplitude and high frequency of screening; it differs from the conventional screens with breaking of the surface tension of pulp and small granularity high speed vibration on sieve cover and accelerates the separating of large-density useful mines and increase the contacting probability of the materials smaller than output granularity and the sieve pore.

高频筛效率高、振幅小、筛分频率高。与普通筛分设备的原理不同，由于高频筛采用了高频率，一方面破坏了矿浆表面的张力和细粒物料在筛面上的高速振荡，加速了大密度有用矿物和析离作用，增加了小于分离粒度物料与筛孔接触的概率。

It is shown that the contact interaction enables bottom drillstring to whirl backward, and then an alternate bending stress with higher frequency is produced. So the drillstring fatigue failure could be accelerated. At the same time, a quite strong wallop force of high frequency is produced on the contacting point, and the contacting zone is next to the screw coupling of drill collars. It will easily result in the failure of screw couplings. The research results provide theoretical basis for the prevention of drillstring failure.

研究表明，下部钻柱与井壁的碰摩作用使下部钻柱反向涡动，产生高频的交变弯曲应力，会加速下部钻柱疲劳破坏；下部钻柱与井壁接触点处存在较大的高频冲击力，并且接触区域靠近钻铤螺纹联结处，更容易诱发螺纹联结处失效，该研究成果可为预防钻柱失效提供理论依据。

This text sets out from kinetics property of the electronics inside the high frequency electromagnetism field,getting the influence of the radio frequency to inner resistance of cavity resonance and the relation with ion energy.

文中从高频电磁场内电子的运动学性质出发，得出射频频率的变化对谐振腔增益管内部阻抗的影响，及其与等离子体能量的关系。

Compressional waves and shear waves mainly cause high-frequency (greater than 1 Hertz) vibrations which are more efficient than low-frequency waves in causing low buildings to vibrate.

纵波和横波主要形成大于1赫兹的高频震动，相比低频震动，这类波更容易造成低层建筑物的震动。

The Laser Raman Microprobe study of these quenching melts has obviously shown that within the high frequency region (900~1200cm-1), the higher the pressure, the smaller the frequency of T-Onb symmetry and antisymmetry stretching vibration.

其激光拉曼微探针研究表明：随压力增大，T-Onb在高频区(900~1200cm-1)的对称和反对称伸缩振动频率明显减小；过铝质熔体中存在六配位铝，且随压力增大，铝的配位数可能有从四配位向六配位转化的倾向。

The numerical simulation shows that Doppler lidar with the optical frequency discriminators has high sensitivity and accuracy for wind profile measurement in both troposphere and stratosphere.

标 签 激光技术多普勒激光雷达光学鉴频器风速法布里-珀罗菲索 laser technique Doppler lidar optical frequency discriminator wind velocity Fabry-Perot Fizeau

Select Installation and then Antenna Setting, and set the local oscillator frequency of the high-frequency tuner of 146ku.

选择安装里的天线设定，设置146ku的高频头的本振频率。

During coronary sinus ostium pacing, coronary sinus electrodes recorded double potentials, a sharp and high-frequency potential followed by a rounded, low-frequency potential.

冠状窦口起搏时，冠状窦电极记录到双电位，第一个波为高频信号，为冠状窦肌肉结构从其口部向远端激动所产生。

Best cost-benefit ratio in our all series loudspeakers and perfect performance: Pro protect circuits are built into the crossover network to guard the high-frequency and low-frequency transducer from damage.

最佳的成本效益比，在我们的所有系列扬声器和完美的表现：临保护电路都内置于交叉网络，以防范高频率和低频率变送器受到损坏。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！