It can also modulate the laser intensity by acoustooptic effect, and control the central frequency of the device.
也可以用声光效应实现激光强度的调制，而用电光效应来控制器件的中心频率。
The key technique of this new filter is how to achieve the extreme narrow band-pass width and a slight deviation of central frequency.
如何实现极窄的通带宽度和极小的中心频率偏差是研制中所解决的关键技术问题。
The filter used a kind of general structure, whose central frequency located nearby the rotation speed to reduce the unbalance vibration.
该陷波滤波器采用通用式结构，其中心频率分布在转子转速附近以抑制不平衡振动。
The phase balance of the central frequency can ensure the accuracy of the correlation phase, and the residual phase error will only reduce the coherency.
实现信道中心频率的相位精度就可以保证干涉相位的精度，而通道内的残余相位差只会引起干涉相关度的降低。
Estimation of Doppler central frequency has an important effect to accuracy of fixed position in the fixing approach with no reference points for ocean SAR.
在无参考点海洋sar定位方法中，多普勒中心频率估计对定位精度有着重要的影响。
In radar signal processing systems, the central frequency and bandwidth of clutter must be accurately estimated to suppress clutter and prevent target whitening.
在雷达动目标检测等处理中，为了有效抑制杂波，并防止目标白化，首先需要对杂波谱中心和谱宽进行有效的估计。
The method which combines cross correlation detection with chaos theory to detect the weak signals relative to central frequency in overvoltage monitoring is proposed in the paper.
提出将互相关检测和混沌理论相结合应用于过电压监测中的频率跟踪，检测相对于中心频率极小的微弱信号。
The effect of Signal-Noise-Ration (SNR) to the estimation of Doppler central frequency has been studied using theoretical method and simulation technique, and results are given in curves.
该文从理论和仿真两个角度研究了信噪比对多普勒中心频率估计的影响，给出了多普勒中心频率和信噪比的理论及仿真关系曲线。
By inserting a slot at the edge of the rectangular slot on the ground plane and loading a C-shaped resonator near the microstrip line, dual band-notched characteristic at the central frequency at 3.
通过在地板上的矩形槽的边缘开槽和在馈线旁加载C形谐振器，该天线实现在中心频率3。
ALOHAnet's nodes all transmitted data to a central hub on the same radio frequency, and received data on a second frequency.
ALOHAnet的所有节点将数据以相同射频传输至一个中央线路集成器，再以另一种射频接收这些数据。
High frequency of infection is associated with the use of invasive devices, in particular central lines, urinary catheters, and ventilators.
感染的高频率与侵入设备的使用，特别是中央线，导尿管和通风设备密切相关。
The precipitation influences significantly the seasonality and frequency of dust storms in Central Asia.
中亚地区盐尘暴的季节性和频率受降雨的影响很大。
In the application of central air-conditioning, the technology of variable-frequency primary pump has been widely studied.
在中央空调的应用过程中，冷冻水一次泵变频技术得到了广泛的研究。
The central competent authority shall determine and officially announce the targets, regions, frequency and deadlines for the performance of the testing in the foregoing paragraph.
前项检验实施之对象、区域、频率及期限，由中央主管机关订定公告。
There were rather less studies on the frequency conversion of cooling water pumps in central air conditioning systems than that of cold water pumps.
与中央空调冷冻水泵变频相比，冷却水泵变频问题研究较少，争议也比较多。
The central part is frequency modulator.
核心部分是频率调制器。
The progress on the study of radio frequency radiation from mobile telephone influence on the central nervous system and the study matter and resolvent are discussed in the article.
本文综述了近年来有关射频辐射对中枢神经系统影响的研究结果，并指出目前研究存在的问题及将来可能的研究方向。
When high frequency pulse current is applied to CC billet, the centerline pipe and centerline crack in the billet are eliminated, and the central segregation and central crack are reduced.
进行了连铸工业试验，效果明显：铸坯中心缩孔和中心裂纹被消除，中心偏析和中间裂纹也得到降低。
It acts as the LPF, effectively eliminating the high frequency component in the feed-in signal. The groove in the central region working as a loading capacitance in the open end is also discussed.
高频扼流圈是一段未闭合的铜，和其终端等效的边缘电容形成一个低通滤波器，可以有效地滤除馈入信号中的高频成分。
The automatic production system is computerized by the central computer and frequency modulation and motor speed change are made by front-end control CARDS.
基于计算机控制的楞纸板自动生产系统，以主控计算机为自动控制核心，通过前端控制卡，实现了对变频器进行调节，和对电动机调速。
An algorithm for power system frequency measurement based on numerical differentiation and central Lagrange interpolation is presented.
提出了一种基于数字微分和拉格朗日插值的系统频率快速而准确的测量算法。
Offset driving wheel in combination with castor wheel increase stability of truck during lifting, while minimize the maintenance frequency compared to a single central wheel.
偏置式驱动轮与万向轮相结合，增加车子在操作过程中的稳定性，同时减少了万向轮的维修频率。
ON power plant to the lower frequency used by rail systems in central Europe - from 50 hertz (Hz) to 16.7 Hz.
ON电厂产生的电力频率转换成在中欧铁路系统所使用的更低频率——50赫兹到16.7赫兹。
When applied high frequency pulse current on CC. billet, the centerline pipe and centerline crack in billet are eliminated, and the central segregation and middle crack are improved.
用高频电场处理连铸小方坯，可以消除铸坯中心缩孔和中心裂纹。改善中心偏析和中间裂纹。
Taking as an example the FVR-185G5S-4 Frequency Converting Governor used in Arsenic Acid plant in Guixi Smelter, this article describes the application of the Governor to the central control system.
本文以贵溪冶炼厂亚砷酸车间使用的日本富士通FVR—185G5S—4变频调速器为例。阐述其在集散控制系统中的应用。
A spinning machine, especially a ring spinning frame, includes at least one driver started via one frequency converter and one central control unit for starting the frequency converter.
一种纺纱机，特别是一种环锭细纱机，包括至少一个能通过一变频器启动的驱动和一用来启动变频器的机器中央控制单元。
Then a low pass filter is designed to filter high - frequency noise in data. and smooth data again by means of central interpolation algorithm ;
剔除并补正了飞行实验数据中的野值；设计了一个低通滤波器来滤除数据中的高频噪声；用中心插值演算法对数据二次平滑。
High-frequency band-pass filters(several hundred MHz) are used for Channel selection in telephone central offices.
高频带通滤波器（几百MHz）用于电 话中心局的信道选择。
Objective To observe the features of frequency domain optical coherence tomography (FD-OCT) in acute central serous chorioretinopathy (CSC).
目的观察急性中心性浆液性脉络膜视网膜病变（CSC）频域光相干断层扫描（FD-OCT）的图像特征。
Objective To observe the features of frequency domain optical coherence tomography (FD-OCT) in acute central serous chorioretinopathy (CSC).
目的观察急性中心性浆液性脉络膜视网膜病变（CSC）频域光相干断层扫描（FD-OCT）的图像特征。
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