This wide frequency changed hole and high resistance absober has tested by Zhejiang environment protection and libration control speciality association,the coefficient of sound ab- sorptio.
提出一种穿孔吸声板,用于代替原有的吸声板,不仅可以减少材料的厚度,而且可以提高材料的吸声系数加宽吸声频带,以最大限度的提高经济指标,所研究的宽频变腔高阻吸声板经浙江省环保与振动控制专业协会测试,其吸声系数普遍高于普通微穿孔吸声板。
The main characteristics of their development are “two wide” (wide temperature range, wide frequency range), “two high” (high Bs, high DC-bias performance) and “two low” (low loss, low total harmonic distortion).
综述了近两年来世界各大公司锰锌铁氧体材料技术特性日新月异的进步,指出了该材料系列三大板块(高μ、高Bs、低功耗、高μQ)相互交叉,求新求全发展的动向,总结了新材料两宽(宽温、宽频)、两高(高饱和磁通密度,高直流叠加性能)、两低(低损耗或低功耗、低谐波失真)的技术特点,提出了以现有材料体系为基础的研发思路。
By removing the central hydraulic power supply together with hydraulic pipes,an EHA\'s reliability and efficiency are greatly improved but its frequency width and stiffness decreased.
仿真结果表明:经过优化的新结构有效扩展了系统频宽。
There are few reports about measurement of magnetic field on broad band three-dimensional in time domain.
国内在磁场时域测量方面侧重于单频磁场的测量,宽频磁场三维时域波形的测量研究少见报道。
The Application of Genetic Algorithm for the Design of a Broadband Microstrip Antenna;
遗传算法在优化设计宽频微带天线中的应用
Applied method of broadband technique in underwater acoustic measurement;
水声测量中的宽频技术应用方法
In data acquisition, Attentions are paid to preserve frequency bandwidth and energy of high free-quency components.
注意保持频宽和高频成份的能量；数据处理采取了高精度静校正、高保真去噪和高保真拟合等方法，保证资料有高信噪比和高分辨率。
wideband (cable) television
宽频带(有线)电视
optimum wide band horizontal stack
最佳宽频带水平叠加
European Wideband Communications System
欧洲宽频带通信系统
combined wide-band antenna system
复合式宽频天线系统
broad band seismic acquistition method
宽频带地震采集方法
ultra wide band signal generator
超宽频带信号发生器
broad band seismic interpretative method
宽频带地震解释方法
broadband artificial network (BAN)
宽频人工（电源）网络
A broad-band constant beamwidth method for circular multi-element array
多基元宽频带恒定束宽圆弧形声基阵
These extremely high frequencies allow proportionately wider band-width signals to be transmitted.
这些超高频能传送均衡的宽频信号。
Research on Multi-Frequency and Broadband Miniature Planar Antenna
小型平面天线的多频段及宽频带研究
The Designing of 30MHz～512MHz Broadband Receiver RF Front-end
30MHz～512MHz宽频带接收机射频前端设计
Analysis and realization of wide-band frequency synthesizer in hopping communications
跳频通信宽频段频率合成器的分析与实现
impulse bandwidth
脉冲(频)带宽(度)
bandwidth of one voice channel
一个语音频道的频宽
Automatic frequency control system pull-in Bandwidth
自频调系统的捕捉带宽
receiver channel RF bandwidth
接收机射频通道带宽
wideband image recovery mixer
宽带图象恢复混频器