For certain signal types, such as low level or high frequency, the analog backplane should not be used to avoid possible signal degradation.
对于特定的信号类型，例如低电平或高频率，则不宜使用模拟背板，以避免造成信号劣化。
It has high level of stability and can produce waveform of high frequency and precision.
它能产生频率高、精度高、稳定性好的波形。
The result showed that the analyzer has wide input frequency range, narrow RBW (Resolution Bandwidth) and high scanning accuracy, and it reaches the international advanced level.
测试结果表明所设计的分析仪输入频带宽、频率分辨力和扫频准确度高，达到国际同类产品先进水平。
Results show that EFL learners, even at the advanced proficiency level, have great difficulty with high frequency function words, such as TO and FOR.
结果显示，中国英语学习者，即使在高级阶段，在运用如TO和FOR等高频率功能词方面仍然有很大的困难。
The production volume of high-frequency quartz crystal display was yet to reach a level that reaps most benefit from economies of scale.
高频石英的产量目前尚未达致规模经济效益的最佳水平。
The optimal combinative scheme of composite high-yield agronomic measures for top yield level was showed by the frequency number analysis.
通过频数分析，得出指定产量水平下的最佳综合农艺措施给合方案。
Booster compressor noise has the characteristics of wide frequency band, intense low frequency sound and considerably high total sound pressure level.
增压机噪声具有频带宽、低频声强烈，且总声级又相当高的特性。
The manufacture level of domestic CNC machine tools is low compared to overseas advanced manufacture level mainly because for low reliability and high failure frequency.
我国数控机床制造水平与国外先进水平相比还有很大差距，主要反映在可靠性差、故障率高上。
High frequency with strong level induced by interacting shock wave to cavity wall was expressed in calculation.
计算中体现了空气冲击波与空腔壁作用后激发的强谱振幅高频冲击波。
A novel double-sampling double-delay switched capacitor resonator with high performance is proposed. High notch Q-value and accurate notch frequency are analyzed at the transfer function level.
在研究了开关电容谐振子的基础上，提出了一个新颖的高性能的双采样的双延迟式谐振子，传输函数级的分析和模拟表明该谐振子具有高的陷波Q值和精确的陷波频率。
A new signal source for electric impedance tomography system is developed to improve the high-frequency performance and to reduce the noise level of the old one.
目的研制用于电阻抗断层成像系统的信号源，提高现有系统的高频特性，同时降低其噪声水平。
QS28 large size of the subwoofer with the horn is a high level when the replay surplus designed low-frequency energy.
QS 28大规格的装有号角的超低音音箱，是为在电平很高时能重放出超低频能量而设计的。
Adverse effects of switching losses which operating at high frequency are analyzed at the beginning of a three-level matrix power converter configuration.
从三电平矩阵式电力变换器的拓扑结构入手，分析在高频下工作时开关损耗带来的负面效应。
The noise from injection and bubbling has the character of wide frequency band and high noise level.
喷注与鼓泡产生的噪声具有频带宽、声压级较高的特征。
Students using English learning strategies are in the medium level, the overall using frequency is not high;
中专生使用英语学习策略处于中等水平，总体使用策略的频度不高；
The high turn-on frequency permission selects the small superficial ceramics electric capacity, may save the board level area, reduce the cost and to reduce the output voltage ripple.
高的开关频率允许选用小的表面瓷陶电容，可节省板级面积、降低成本和减小输出电压纹波。
Very high efficiency and stable single frequency (SF) operation was obtained by using model 801D ring dye laser at normal pumping level.
本文报告了利用801D型环形染料激光器，在一般泵浦功率下获得了甚高效率的相当稳定的单频运转结果。
Now of "silver dragon" high quality, triple frequency balanced overall energy feeling energetic, deserved has in the "reference level", and its unique noble style is part of its strong strength!
现在的“银龙”具有极高的素质，三频均衡整体能量感充沛，当之无愧的入选了“参考级别”，而其特有的高贵风格更是它强劲实力的一部分！
The results reveal that the high value areas of the kinetic energy of low-frequency fluctuations in the upper level are closely related with the zonal asymmetry and the meridional shear of westerlies.
发现高空低频扰动动能的高值区与西风急流的纬向非对称性和经向切变关系密切。
In this issue, a device of variable velocity variable frequency on medium-high voltage three-level is developed to reduce energy consumption and improve the cost-effective for the previous problems.
针对这些问题，本课题研究开发了一种中高压三电平变频调速装置，降低电机的能耗、提高系统的性价比。
Test results demonstrate that this system can increase the accuracy of railway frequency-shift signal detection effectively, and has high integration level and reliability.
测试结果表明本系统能有效地提高铁路移频信号检测的准确度，具有高集成度和高可靠性。
Underwater acoustic channel is a time-space-frequency variant channel, having a character for narrow bandwidth, high ambient noise level and strong interference of multipath.
而由此构成的水声信道是一个空间与频率响应随机快速变化的传输信道，存在窄带、高噪及强多途干扰。
The portable semiconductor laser frequency stabilizer has high integration level, convenient carrying and low cost.
本发明提供的便携式半导体激光稳频器集成度高，便于携带，成本低。
The experimental results show that at middle and high frequency ranges, the noise level of the bi fuel vehicle when using LPG is higher than that using gasoline;
试验结果表明，两用燃料汽车燃用LPG时，在中高频率段噪声水平高于燃用汽油燃料；
This simulator has several advantages, e. g. low frequency, high power, and its transmitting sound level is adjustable, which could meet the engineering demands of kinds of open sea tests.
模拟器具有低频、大功率等优点，并且发射声源级可调，可满足多种海上试验的工程需要。
High-frequency horn can rotate, making multi-level point of view of the box to prevent both can be placed vertically.
高频号角可以转动，使得多角度的箱体既能水平防止也可以垂直放置。
High-frequency horn can rotate, making multi-level point of view of the box to prevent both can be placed vertically.
高频号角可以转动，使得多角度的箱体既能水平防止也可以垂直放置。
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