查询词典 oscillation mode

This thesis will pass the detailed analysis, taking safe mode of electronic commerce as the main line, connecting get up, draw lessons from domestic and international to the electronic commerces advanced technique and experiences of safe mode research, introduce the electronic commerce of the Donguan present condition of the safe mode with the present condition of the our country electronic commerce and the present condition of the abroads existent problem, then usher in to resolve the related and safe technique of safe mode problem of electronic commerce, negotiate, mode and strategy, take this as the core, discuss the electronic commerce safe mode problem of the Dongugan to resolve the measure and paths.

本论文将通过详细的分析，以电子商务安全模式为主线，将我国电子商务的现状和国外的现状连接起来，借鉴国内外对电子商务安全模式研究的先进技术和经验，介绍东莞市电子商务安全模式的现状及存在的问题，再引进解决电子商务安全模式问题的相关安全技术、协议、模式和策略，以此为核心，论述东莞市电子商务安全模式问题的解决措施和途径。

It is found that comparing with compact single circuit transmission mode, T-type compact transmission mode of two circuits on the same tower and conventional transmission mode of two circuits on the same tower, the transmission mode of two circuits with same phase sequence in the same tower window need narrower corridror width, and the radio interference and audible noise caused by this transmisison mode is relatively lower, especially, the corona loss is reduced evidently, thus better economic and social effects can be obtianed by applying this transmission mode in a short distance under a centain condition.

从走廊宽度、电磁环境、潜供电流和防雷特性4个方面对750 kV同塔同窗同相序紧凑型输电方式进行了分析，发现与单回紧凑型、同塔双回T型紧凑型及同塔双回常规型输电方式相比，采用同塔同窗同相序紧凑型输电方式所需的走廊较小，无线电干扰和可听噪声相对较低，尤其是电晕损失明显减小，采用这种方式在一定条件下可获得较好的经济效益与社会效益。

Based on the laser longitudinal mode splitting theory, a novel scheme of dual-frequency laser with large frequency-difference is presented using electrically controlled birefringence of liquid crystal, and the transmitted resonant mode splitting by birefringent of Fabry-Perot etalon has been analyzed theoretically. A new element of liquid crystal Fabry-Perot etalon is designed and fabricated, which serves as aselector and splitter of both laser longitudinal modes and Fabry-Perot etalons transmitted resonant modes. Two different experimental systems of laser-diode end-pumped Nd:YAG laser have been set up using two different LDs, and the transmission of liquid-crystal cell have been measured. When the empty LCFP is inserted in the cavity of high-power LD pumped Nd:YAG laser, the oscillation of a single laser longitudinal mode have been observed, such a result shows that the designed and fabricated LCFP element is capable of selecting single axial mode. While an anti-reflected liquid crystal cell is inserted in the cavity of Nd:YAG laser end-pumped by the high-power LD, it is difficult to confirm weather the laser longitudinal modes have been spitted or not. The subject is summarized in this thesis and the improvement of the project has been presented.

论文以激光纵模的分裂理论为基础，提出了可望获得几十GHz甚至上百GHz的液晶电控双折射双频Nd：YAG激光器的总体方案，并对用双折射效应分裂F-P标准具透射谐振模进行了理论分析；设计并加工了一种集激光纵模选择、激光纵模分裂和F-P标准具谐振透射模分裂于一体的多功能元件——液晶电控双折射F-P标准具；建立了两种不同功率激光二极管端面泵浦的Nd：YAG激光实验系统，并对液晶盒的透射性质进行了测试；将未灌注液晶的空液晶F-P摘要标准具插入大功率LD泵浦Nd：、叭G激光谐振腔内，观察到了单纵模激光输出，说明所设计和加工的液晶F一P标准具具有纵模选择能力；将镀有增透膜的液晶盒插入大功率LD泵浦Nd八7AG激光谐振腔内，是否产生了激光纵模分裂现象还难以确定。

The short period mode is an oscillation of the pitch of the aircraft at mainly constant speed while the phugoid mode is an oscillation of the pitch at mainly constant angle of attack.

短周期是在等速运动下飞机俯仰的振荡，长周期是在攻角保持定值下飞机俯仰的振荡。

As a primary result, threshold current of 200~700 mA and DFB mode oscillation within a range of at least 80℃ is achieved, and stable single longitudinal mode oscillation is maintained up to at least 20 mW output.

作为初步结果，氧化膜条形器件阈值电流为200~700mA，单模输出功率至少为20mW，单模工作持续到至少80℃。

It is also necessary that the center value of load capacitance (to determine the absolute value of oscillation frequency) and the variable range (fine adjustment range of oscillation frequency) are maintained at the optimum values in the oscillation circuit.

在振荡电路中，负载电容的中心值(其决定谐振频率的绝对值)和其变化范围(谐振频率的良好调整范围)应保持在最佳值。

The numerical results show that lossy dielectric-load can heighten the start oscillation current of absolute instability, and increase depends on the magnetic field strength and the perpendicular-to-parallel velocity ratio of the electrons; The thickness of the lossy waveguide increases the start oscillation length of backward wave oscillation.

结果表明：损耗介质的加载，可以提高绝对不稳定性起振电流，提高的幅度依赖于工作磁场偏离饱和磁场的程度、电子束横纵速度比等；增加波导损耗介质加载的厚度，可以提高竞争模式的回旋返波起振长度。

In order to increase the reversibility and the amplitude of the salt-water oscillation, the salt-water oscillation and the liquid membrane oscillation were coupled to create a compound oscillator.

实验结果表明，有表面活性作用的物质可以增加盐水振荡的振幅，有络合性能的物质的络合作用是盐水振荡可逆的关键，既有络合作用，又可以起到表面活性剂作用的物质既可以增加盐水振荡的振幅，又可以使盐水振荡可逆。

Triggering off the free oscillation of the reinforced bar by amplifying the triggering signal of the piezoelectric ceramic sensor by the emitter coupled oscillation circuit , we have measured the oscillation frequency of various reinforced bars, and then we can calculate the magnitude of the corresponding pre stressing force accor.

论述了振动法测量钢筋的预应力的新方法，振动触及压电陶瓷传感器产生的电信号，通过双稳态触发振荡电路，经放大后启动钢筋自由振动。根据弦线振动频率和所受张力之间的关系，测量出不同型号不同长度的各类钢筋的频率，从而得出对应钢筋的预应

Continuous Casting Strand ; Mechanism of Oscillation Mark Formation ; Oscillation Mark Controlling ; Mold Oscillation ; Electromagnetic Continuous Casting

连铸坯；振痕形成机理；振痕控制技术；结晶器振动；电磁连铸

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。