查询词典 syntony

The main content of this dissertation includes: 1. Research on the theory of ultrasonic power supply, introduce its development process. On the basis of these, fix on the scheme of medical ultrasonic low-power supply. 2. According to the principle of modularized design, divide medical ultrasonic low-power supply into four parts. They are power amplify circuit, power control circuit, frequency automatic tracking circuit and matching circuit. Separately research on their theories and design their circuits and necessary programs, especially, effectively resolve the problem tracking the supersonic vibration system with a narrow syntony frequency bandwidth and a high swing. 3. The matching experiments gain good result, and prove that medical ultrasonic low-power supply is entirely up to the mustard on intellectualization, wide band of working frequency, steady output and high efficiency.

本文工作的主要内容包括： 1、研究了超声功率电源的原理，并回顾了它的发展过程，在此基础之上确定本文医用小功率超声电源的设计方案； 2、按照模块化的设计原则，将医用小功率超声电源的设计分解为功率放大电路、功率控制电路、频率自动跟踪电路和匹配电路等四个部分，分别研究了各部分的原理，在此基础之上进行了具体的电路设计和程序设计，尤其是有效地解决了对谐振频率带宽窄振幅高的超声振动系统的频率跟踪问题； 3、通过与超声振动系统的各项配合实验，取得了很好的实验结果，验证了医用小功率超声电源完全满足智能化、工作频带宽、输出功率稳定、输出效率高的设计要求。

Secondly, based on the syntony frequency and the elasticity mechanics and other correlative professional knowledge, establishes a suit of FSM vibration module system, selects the structure, material and the process and treatment technique of the elastic element in the elastic system of the mirror, analyzes a lot of factors which affect the structure of the rapid controlling reflector and provides the derivation formula.

以谐振频率为出发点，利用弹性力学等相关专业知识，建立一套FSM的振动模块系统；确立了反射镜弹性系统中弹性元件的结构、材料的选择，及加工，热处理。分析了影响快速控制反射镜结构的诸多因素，给出其相关推导公式，最后应用SOLID EDGE和COSMOS软件对该结构进行了计算机仿真。

Just when condition of potential difference of membrane inside and outside is accord to inside condition and outside environment, the self adapting respond can be arose, and syntony to excite biotic enzyme, to enhance the ability of self-rebirth.

仅当膜内外电位差大小同它的内部条件和外界环境一致时，才能产生"自适应生物响应"，产生"共振"促进生物酶的激活，诱发"自我再生作用"能力的增强，产生放大作用，否则无效。

The study demonstrates that there are four ways to expand the bandwidth of servo control system of the electro-optical theodolite: 1 Improving the free vibrancy natural frequency of optical-electronic theodolite; 2 To compensate the structural syntony ; 3 Using electric current feedback; 4 Using acceleration and velocity feedback.

研究表明，提高光电经纬仪伺服控制系统带寛有4个途径：1）增大光电经纬仪固有频率；2）对结构谐振进行补偿；3）使用电流反馈；4）使用加速度和速度反馈等。

The test methods of electrical property on liquid farm products,making edible plant oil as trial object,were studied by using self-government syntony testing device of parallel flat three electrode.

分析了农产品介电特性的测试原理和食用植物油介电特性机制，以食用植物油为试验对象，研究了流体类农产品介电特性测试方法，自制了平行平板三电极结构的谐振替代测试装置，并利用该装置在一定的频率和温度范围内，探讨了食用植物油介电特性与频率和温度的关系。

Air wire is a important component of radio controller , it is composed of the series-parallel connection syntony circuit by day coil and capacitance, with rapid and intense high frequency interface coupling, one side needs and the card parameter mates, the feasible card is able to get the sufficient energy and the entire data , the data taking-over returns and with the card responding to , another aspect will mate with to enlarging a circuit again , makes the radio controller gain sufficient electric energy in the process of read-write card.

天线是射频控制器的一个重要组成部分，它由天线圈与电容组成串并联谐振回路，与高频接口紧密耦合，一方面要与卡片参数匹配，使得卡片能够得到充足的能量和完整的数据，并且把卡片的响应数据接收回来，另一方面又要与放大电路匹配，使射频控制器在读写卡过程中获得足够的电能。

Sometimes the series and shunt syntony with main system would enlarge harmonics and make things worse. Active Power Filter, as another kind of filter equipment, begin to make use following the advancement of GTR,GTO, IGBT and etc. Theunique advantage of this new setting is dynamic harmonics canceling. Now, the shunt APF is the most widely used one.

进入80年代以后，随着有源滤波技术的不断深入和用户对谐波问题的重视，以及电力电子技术的飞速发展，大功率可关断器件(GTR，GTO，IGBT等)的不断进步，有源电力滤波器(Active Power Filter， APF)作为抑制电网谐波、补偿供电系统无功功率的新型电力电子装置得到迅速发展，其中又以并联型有源电力滤波器的使用最为广泛。

After the trip of the tie line breaker caused by syntony,a series of faults ocurred in a power plant under the operating condition of single generator with heavy plant loads,such as auxiliary transformer tripping, standby transformer short-circuit and generator burnout and so on.

阐述了某电厂由于谐振造成联络线路断路器跳闸后，发电机单机带厂用电重负荷运行情况下。出现厂用变压器跳闸、备用变压器短路及发电机被烧毁等一系列故障。

It also analyzes the feature and development of semi-finish grinding and finish grinding by roller press.

同时进行了辊压机半终粉磨和终粉磨系统的特点和发展分析。

When I got there, water was dripping slowly from the ceiling and forming a pool on the floor.

当我到那里的时候，水是慢慢地从天花板滴而且形成在地板上的一个池。