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频率系统
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  frequency system
     THE OPTIMAL CONTROL OF DISCRETE LINEAR POWER FREQUENCY SYSTEM
     离散线性功率频率系统的最优控制
短句来源
     Thinking About the Constraction of an IndependentChinese Time and Frequency System
     建设我国独立自主时间频率系统的思考
短句来源
     The reliability evaluation indices of distribution system are load point average failure rate, load point average interruption duration every time, annual load point average interruption duration, annual customer interruptions, the customer interruption duration, system average interruption frequency, system average interruption duration, customer average interruption duration and average service availability index.
     文中计算的配电系统的可靠性指标是:负荷点的平均故障率,负荷点的平均停运持续时间,负荷点的年平均停运时间,每年用户停电次数,用户停电持续时间,系统平均停电频率,系统平均停电持续时间,用户平均停电持续时间,平均供电可用率。
短句来源
     At present, the Time and Frequency System of high accuracy which contains many atomic clocks builds and keeps a time scale according some algorithm.
     目前,高精度时间频率系统是由多台原子钟联合守时,通过一定的算法建立和维持的,参加守时的原子钟必须处于良好的运行状态。
短句来源
     In this paper, a method of discriminating the working si tuation of a time frequency system composed of frequency standards and dividers on realtime basis is described and the function principle of the diseriminator is presented.
     本文叙述了对由频率源分频钟组成的时间频率系统的工作状态进行实时监测判别的方法以及该设备的工作原理。
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  “频率系统”译为未确定词的双语例句
     The Measurement of the Frequency Discriminating Curve of CO_2 Laser Frequency-Stabilized System Using NH_2D Stark Cell with the Heterodyne Method
     科用外差法测定NH_2D斯塔克盒稳定CO_2激光频率系统的鉴频曲线
短句来源
     In the 40Gbit/s optical fiber communication system used in the experiment, the maximum detectable CD of 130ps/nm and a resolution of 5.2ps/nm were achieved at the narrow band frequency centered at 12GHz.
     在40Gbit/s光纤通信系统中,选用12GHz作为窄带中心频率,系统色度色散反馈值的测量范围可达130ps/nm,平均测量精度可达5.2ps/nm。
短句来源
     We put forward the heterodyne beat frequency method measuring the frequencydiscriminating curve of CO_2 laser frequency-stabilized system using NH_2DStark cell, in which the central frequency of NH_2D is fixed, laser frequencyis changed and the variation of laser frequency is recorded by the heterodyne beat frequency counter.
     本文提出了固定NH_2D分子吸收线型中心频率而改变激光输出频率,用外差拍频计数记录激光频率的变化的外差拍频测定NH_2D Stark盒稳定CO_2激光频率系统中鉴频曲线的方法。
短句来源
     Aiming at the third frequency added in GPS Modernization, the triple-frequency corrected model of ionospheric refractive error and the ionosphere-free combination model of triple-frequency is deduced.
     针对GPS现代化中增加的第三频率,系统推导了三个频率的电离层改正模型及相位观测值无电离层组合(LC组合)模型。
短句来源
     In this paper,according to the harmonic balance principle,holzer method and perturbation method,an approximate method is presented for homogeneous non-lin-ear systems and devoted to the solutions to the natural frequencies and the normal modes,to the system responses and the main resonances.
     根据基波平衡原理、Holzer法和摄动法,本文给出了求解齐次非线性振动系统的近似方法,方法可求系统的固有频率,系统的响应和主共振.
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  相似匹配句对
     Short Wave Frequency Management System
     短波频率管理系统
短句来源
     SYSTEM
     系统
短句来源
     system).
     系统)。
短句来源
     Power System Frequency Estimation
     电力系统频率估算
短句来源
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  frequency stabilization system
Physical, optical, and electronic aspects of this discriminator/laser frequency stabilization system are considered in detail.
      
A?modulation-free frequency stabilization system has been designed which uses the differential signal from two frequency-displaced beams traversing a Rb cell and which probe the Doppler-broadened Rb S-P lineshape at microwatt power levels.
      
Figure 20a is a plan of our allfibre frequency stabilization system.
      
  frequency system
The low-frequency system over SCS propagates northward while that in mid-high latitudes mainly propagates from northeast to southwest.
      
We have developed a reliable and high-frequency system of transformation and regeneration via somatic embryogenesis (SE) of Lycium barbarum.
      
Magnetic resonance systems require a broadband radio-frequency system - which is generally available for MR spectroscopy - and dedicated coils.
      
Possibly, the 3601.9?cm-1 band is associated with the tetrahedral OH B defect and the high-frequency system with the dodecahedral OH Li defect.
      
The physical basis of ballistocardiography has now been thoroughly investigated and there is general agreement that the ultra-low frequency system is the most satisfactory.
      
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We have made set of devices employed for automatic and continuous measuring the resonant frequency, that used measuring the density of some Cryogenic liquid, such as liquid nitrogen and hydrogen and so on, and also the other physical parameter of non-polar liquids such as dielectrical constants, average polarizabilities and radii of molecules etc. while equipped with open-ended microwave cavity.

研制了一套可用来自动与连续地测量谐振频率的系统,配以开端微波谐振腔(3公分),适用于连续测量低温流体的密度、如液氢,液氮等还可用于测量其它非极性液体的介电常数,分子电极化率,及分子半经等物理参数

In this paper, a method of discriminating the working si tuation of a time frequency system composed of frequency standards and dividers on realtime basis is described and the function principle of the diseriminator is presented.

本文叙述了对由频率源分频钟组成的时间频率系统的工作状态进行实时监测判别的方法以及该设备的工作原理。

This paper presents a new version on frequency selection of multi-system mobile communications and on the principle of the forming of the wide-sense non-third-order intermodulation network for setting up a new communication system in a district where exists the complicated situation of the overlapping of the existing radio communication systems with the newly established systems. Basing on the allowable channel differences, the paper also presents an evaluation method for frequency selection according to systems,...

This paper presents a new version on frequency selection of multi-system mobile communications and on the principle of the forming of the wide-sense non-third-order intermodulation network for setting up a new communication system in a district where exists the complicated situation of the overlapping of the existing radio communication systems with the newly established systems. Basing on the allowable channel differences, the paper also presents an evaluation method for frequency selection according to systems, and demonstration is made showing that the selected system features the narrowest frequency band with no missing-out in frequency selection.

同一业务区在已有无线系统的条件下新设无线系统,并考虑多系统允许重叠覆盖的复杂情况,提出多系统移动通信选频的无三阶互调组网原则。同时给出以允许信道差值为基础的,按系统选频的计算办法,并证明选出的频率系统所占频带最窄和选频的无遗漏性。

 
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