It is a self frequency double laser in some hosts.
选择合适的基质，可产生自倍频可见激光。
The variable speed constant frequency double-fed wind power system is taken as the research object and the control problem of maximum wind energy tracing below the rated wind speed is studied.
以变速恒频双馈风力发电系统为研究对象，研究了额定风速以下风能的最大追踪控制问题。
Another experiment demonstrated that physical exercise, which was sufficiently vigorous to double the rate of breathing, had no effect on the frequency of yawning.
另一项实验表明，体育运动——尤其是剧烈的运动——可以使呼吸频率增加一倍，但这对打哈欠的频率没有影响。
In this paper, we divided the double frequency crystal into numerous small double frequency units and derived the harmonic power and the double frequency efficiency in each unit.
本文中将倍频晶体分割成无数多个小倍频单元，并导出每个倍频单元中的谐波功率与倍频效率。
The trick is to use a clocked DLL, which not only minimizes clock skews, but also offers a double-frequency output clock.
关键是为了使用时钟DLL，它不只是最小化时钟脉冲相位差，还提供双倍输出的时钟频率。
Objective: To observe the effect of double frequency YAG laser in treating pterygium.
目的：观察倍频y AG激光治疗早期翼状胬肉的临床效果。
The edge transition of pulses from incremental encoder can be detected with double frequency to improve measurement precision, and to avoid measurement errors and accumulative errors.
汉字和图形相结合。对增量编码器的脉冲信号沿变化进行倍频检测，提高分辨精度，避免计数误差和累积误差。
Computer memory play, and set various broadcast modes such as time play, double frequency scanning, low speed, stop motion, paragraphs repeat, etc.
电脑记忆播放，设置时间播放，倍速扫描、慢速、逐格、段落重复等多种播放方式。
The paper introduced a frequency measure system composed of double 8051 chips, presented the realized schemes of the hardware and software, and analyzed system 's efficiency.
本文介绍了一种由双8051芯片构成的频率测量系统，给出了其软硬件系统实现的方案，并对该系统效率进行了分析。
This article shows how to choose the double frequency crystal in the properties of basic wave beam provided and how to choose the suitable ways of phase match.
本文提供在已知基波光束性能的情况下、如何选择合适的倍频晶体，以及相应的相位匹配方式。
Vedio process module mainly accomplishes vedio decoding, AD conversion, interlace to progressive conversion, double frequency, etc.
视频信号处理模块主要完成视频解码、模数转化、隔行转逐行、倍频等功能。
The frequency of C1001B double seedling could be improved with a particular selection method.
通过特殊的选择方式，C1001B双苗发生频率可以提高。
Utilizing the information observed, a new type of slip frequency controlled torque-speed double closed loop system is developed.
基于观测出的状态信息，构成了转差频率控制的转矩速度双闭环新型变频调速系统。
Double frequency wave distortion has been found in the experiment.
实验上观察到了倍频失真。
The OH - transmissive spectra, photo damage resistance, photo conductivities and the double frequency properties have been measured.
测试了晶体的红外透射光谱、抗光损伤能力、光电导和倍频性能。
The fraction frequency and double frequency scattering peaks exhibit similar scattering behaviour as the resonance scattering.
分频散射和倍频散射峰与共振散射峰具有相似的散射行为。
Meanwhile, this technology cooperating double frequency chain can also generate wide band and ultra-wide band radar pulse compression signals.
同时，利用中频数字直接产生技术辅以倍频链还可实现宽带、超宽带雷达脉冲压缩信号的产生。
It compares the pilot distance protection with power line carrier (PLC) in the single or double frequency and the differential protection with optical fiber in the loop or chain connection.
比较单频率与双频率载波通道的纵联距离保护和环状与链状连接光纤通道的差动保护方案。
This paper aims at the analysis and computation of double machine power systems frequency dynamics and provides the characteristics of double machine power systems frequency dynamics.
本文首先对双机系统频率动态过程进行了理论分析，给出了双机系统频率动态过程的特点。
The experimental results indicate that the signal intensity is not strong enough when using quadruple frequency laser probe. Therefore, we choose double frequency laser as the probe.
实验发现采用设计的四倍频激光探针时，探针信号强度不够，因此改用二倍频激光探针。
This paper investigates various combined frequency interference in integrated and double-converted transceivers, and points out that the reason is the non-linearity of frequency mixer and amplifier.
研究了一体化二次变频收发信机中各种组合频率干扰的产生原因：主要是由于混频器和放大器的非线性。
This double frequency distortion can be used to double frequency of incident signal.
这种倍频失真可用于对入射信号进行倍频。
The range of double frequency is from 1 to 999. The double frequency number is selected directly by software.
该倍频器的倍频范围为1～999，倍频值可直接由软件选择；
The present paper deals with the definition and algorithm of impedance real part equivalent resistivity in horizontal electric double source frequency electromagnetic sounding.
本文讨论了水平电偶源频率电磁测深中阻抗实部等效电阻率的具体定义和算法。
Gear system besides Double frequency converter controller, making machine simpler operation and more stable when high-speed working.
整机为双变频控制的基础上添加了齿轮传动系统，使整机操作简单、高速运行更加稳定。
GSR plans to double the Ghan's frequency in 2005.
2005年，“大南方铁路”计划将乘坐甘线列车的乘客人次增加一倍。
On constant frequency ratio, loading ratio has an importance influence on the initiation and propagation of fatigue crack under double frequency complex loading.
在频率比确定的条件下，载荷比是影响双频疲劳裂纹萌生及扩展的一个重要因素。
In the paper aiming at the problem of low frequency noise transmission through double panel structure, feedback active noise control technique is adopted to control noise transmission.
本文对于低频噪声在双层板结构中传播的问题，探讨采用反馈的主动噪声控制技术以达到控制噪声传播的目的。
This paper mainly introduces that the fault vibrating signal of gears was decomposed into time-frequency domains by double-orthogonal wavelet analysis and the fault feature of gears was picked up.
利用双正交小波基将齿轮的故障振动信号分解到时频域，并提取出齿轮的故障特征。
This paper mainly introduces that the fault vibrating signal of gears was decomposed into time-frequency domains by double-orthogonal wavelet analysis and the fault feature of gears was picked up.
利用双正交小波基将齿轮的故障振动信号分解到时频域，并提取出齿轮的故障特征。
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