频率范围

从一些浅黄色突变株引起的病斑上获得的单孢培养菌中，野生菌株（WildType）色素的频率范围为10%～100%。

Lesions derived from some buff mutants given conidial cultures with wild type pigment at frequencies ranging from 10 % to 100 % .

由于考虑了辐射效应和高次模的影响，测量频率范围成功地扩展到了X波段。

By considering the influence of radiation effect and higher order modes , the measurement frequency range has successfully extended to X-band .

对LC滤波器进行了优化设计，使得逆变器在全频率范围内都有较好的输出波形。

The LC filter is optimized , then the inverter outputs better waveform among the range of full frequency .

本系统使用FPGA实现计数器及逻辑控制模块的功能，计数频率范围可达1×10-8~16MHz。

The FPGA is used to perform the countings and logical control of modules . The testing frequency range is 1 × 10 ~ ( - 8 )~ 1.6 MHz .

实验结果表明，在实验所涉及的频率范围内，交变应力的频率对聚合物ABS的有限疲劳寿命的疲劳强度没有影响。

It is show by experimental results that the fatigue Strength of finite life of polymer ABS is not affected by the frequency of the cyclic loading .

1M～1GHz频率范围的电子设备输入阻抗测试技术

The Measurement Technology of Input Impedance on Electronic Equipment Form 1M ~ 1GHz

湍流通量贡献区主要在0.01~2Hz频率范围内，冠层上方低频传输的湍涡贡献了更多的CO2通量.这说明开路式涡度相关仪器系统可以满足冠层上方湍流通量观测的基本要求。

The frequency ranges of eddy contributions to CO2 fluxes were mostly within 0.01-2.0 Hz , and the eddy translated by low frequency over canopy contributed more of CO2 fluxes .

这是因为随着增加，混合模G1和G2重叠的频率范围逐渐加大，稳定工作区变窄。

The reason is the range of overlap frequency between hybrid mode G1 and G2 will increase when density of plasma-background increases .

在低混杂波频率范围大功率微波辅助下实现HT-7托卡马克低环电压启动

The realization of HT-7 low voltage start-up in assistance with strong microwave in the lower hybrid frequency rang

适宜的频率范围为20～50Hz。

The frequency range from 20 Hz to 50 Hz is suitable .

广播电视使用的频率范围宽的操作在VHF和UHF波段随着各种数字电视标准。

Broadcast television utilizes a wide range of frequencies of operation in the VHF and UHF bands along with a variety of digital TV standards .

研究了影响单极缝隙天线匹配的因素，并获得了较宽的天线带宽，能覆盖UHFRFID的所有频率范围。

Studied the impact factors of the monopole slot antenna , and about 11 % of the antenna bandwidth was reached , which could cover all UHF RFID frequency range .

EOC的基本原理是在传输CATV信号的频率范围之外，划分不同频率范围分别传输上、下行数据信号。

The basic principle of EOC is plotting out different frequency spectrum to transmit up and down signal separately beyond the CATV signal frequency spectrum .

介绍一种新型的高频电压计量器具，它能覆盖从几Hz到几GHz的频率范围，具有优异的频率特性。

A new kind of high frequency voltage metric instrument is introduced . It can cover frequency range from several Hz to several GHz , It is of good frequency characteristics .

改进后的频谱比法可在较宽的频率范围内进行Q值计算，避免了传统频谱比法在不同频段上得出不同的Q值的不确定性问题。

Using the improved spectral ratio method , we can obtain Q value within a wide frequency range , so we can eliminate the uncertainty condition in classic spectral ratio , that Q value depends on the frequency range .

在含金属组分的SiO2气凝胶骨架上采用气相裂解乙炔的方法制备出SiO2/C/M气凝胶纳米复合材料，并初步考察了其在8-18GHz频率范围的电磁吸波性能。

SiO2 / C / M nano-composite materials were prepared by acetylene vapor decomposition on SiO2 / M aerogels . The electromagnetic-wave absorption-ability of SiO2 / C / M was studied .

本文介绍的石英挠性伺服加速度计，其分辨率可达5×10~（-8）g，在0～200Hz频率范围内，准确度优于±2%。

In this paper , a quartz-flexible servo accelerometer with a resolution of 5 × 10-6g and precision better than 2 % within a range of 0-200 Hz is introduced .

在1到1.4GHz频率范围内的实验表明：Q值容易达到900～1000。这种腔具有结构简单、体积小、调谐范围宽及Q值高等优点。

In our experiment , a high Q value of 900 to 1000 in the frequency range of 1 to 1.4 GHz is easily obtained , the resonator has the merits of small dimension , wide frequency range and simplicity in construction .

该方法将用于反演海底衰减系数计算的频率范围，从低频段（f≤200Hz）提高到中低频段（f≤2kHz）。

Furthermore , the method can be used to inverse the sea-bottom acoustic attenuation coefficient in a wider frequency range of f ≤ 2 kHz than the conventional methods ( f ≤ 200Hz ) .

本文从厚膜材料及工艺出发，大胆尝试，使用SPE技术，极大地提高了厚膜高频的适用频率范围。

In this paper , using SPE technique , it is attempted to greatly increase the high frequency application range of thick film , through the improvement of thick film materials and technology .

设计了一个结构新颖的3.5倍频锁相环（PLL）倍频器，该电路应用自适应电荷泵和压控振荡器工作频率范围复用技术，调整环路带宽，减小压控振荡器的工作范围。

A 3.5 times PLL clock frequency multiplier for LVDS driver is presented . A novel adaptive charge pump can automatically switch the loop bandwidth , and a VCO is designed with frequency range reuse technology .

对于厚度范围为4～10mm的套管，所用换能器的工作频率范围应为270～710kHz。

Because the thickness of casing is from 4 to 10 mm , the acoustic frequency should be in the range from 270 to 710 kHz .

对ADSS的微风振动力学性能进行分析研究，计算分析出需要保护的微风振动的频率范围。

The ADSS aero vibration mechanical performance is analysised firstly , and then the range of aero vibration frequency which needs to protect is confirmed based on the analyze .

基于继电反馈试验，辨识出一阶加纯滞后模型，其Nyquist曲线在一个大的频率范围内接近于大滞后过程。

A first-order plus dead-time model is identified on the basis of relay feedback experiments . Nyquist curve is very close to that of large dead-time processes over a wide frequency range .

对于入射角大于临界入射角时，产生的面波的波函数用有限Fourier级数展开，这种方法适用于较大的入射波频率范围，这是现存的数值方法所不能比拟的一大优点。

For incidence beyond critical angle , the surface waves generated are expensed in terms of finite Fourier series . The method is applicable to the case of a wide range of frequencies , and thus it is preferable to the presently available numerical methods .

生物活体分子内存在大约10~（11）～10~（12）Hz纵向电振动模，这一频率范围正是光泵远红外激光器的工作谱区。

There exist electric modes in the region between 10 ~ ( 11 ) - 10 ~ ( 12 ) Hz in living biomolecules , which correspond to the vary spectral region where the optically pumped FIR laser works .

研究结果表明：慢波结构周期为1.5cm1.9cm时，微波频率范围为4.33GHz4.74GHz，属于C波段；

The results show that when the period of the slow-wave structure changes from 1.5 cm to 1.9 cm , the range of microwave frequency is 4.33 GHz-4.74 GHz , which belongs to the C band ;

在20～100MHz的工作频率范围内，提出的功率时钟电路的能量效率可以达到77%～85%。

The energy efficiency of the proposed power clock generator can reach 77 % ~ 85 % operating between 20 ~ 100MHz .

通过XRD、SEM等手段研究了取代物的结构和组成：采用了网络矢量分析仪，通过同轴法测试了各取代物在2～18GHz频率范围内的复介电常数和复磁导率；

XRD , SEM are employed to study the construction and composition of the substitution , the complex permittivity and complex permeability of the samples between 2 ~ 18 GHz are tested through coaxial method by a network vector analyzer .

初步结果表明：在一个地震系列中，随着临近较强地震（ML≥3.2）的发生，微震P波在10周&60周频率范围内的谱值增高，其置信水平一般在70%以上。

The preliminary results show that the amplitudes of the spectra of microearthquake P waves in the frequency range 10 cps-60 cps increase before the occurrences of larger earthquakes ( ML ≥ 3.2 ), and decrease after them within the corresponding frequency ranges .