高频率的

By using this method, the angular frequency, amplitude, initial phase angle, decay constant of each component in transient voltage and/or current waveforms can be precisely extracted. Also, all other kinds of transient procedure can be analyzed by this method. Thirdly, a new definition of generalized instantaneous reactive power and generalized instantaneous reactive current in dq0 coordinates under any nonsinusoidal and unbalanced three-phase circuit is proposed for the first time. The detection and compensation method for different instantaneous reactive currents are also concerned.

本文首先提出了用于快速高精度频谱分析的一种改进快速傅立叶变换方法，该法具有速度快、精度高、抗混迭、不受采样定理约束、可以分析出谐次大于N／2的频谱系数等特点，可方便地应用于电力系统谐波分析及其它各类频谱分析；然后提出了基于非线性最小二乘优化法的电力系统暂态波形分析方法，可准确求出电力系统暂态电压、电流波形中各个分量的角频率、幅值、初相角及衰减常数，并可广泛应用于各类暂态过程波形分析。

Analysis and experimental results prove that this transducer has performances superior to ordinary interdigital transducer. The advantages are: easy to realize a high rate o...

分析和实验结果证明，这种换能器与普通叉指换能器相比，其优点是：在相同的制造工艺和满足规定的指间反射的情况下，容易实现高的成品率和较高的工作频率。

Currently most domestic break-test-plateform adopt the liquid-pressure-servo technique, which possesses the advantages of higher frequency-response and higher controlling exactness, but in the same time , the disadvantages of higher cost, variation of function with the change of oil viscousness produced by the fluctuation of temperature.

目前，国内的制动器试验台大多采用的是液压伺服控制，这种控制具有响应频率高、控制精度高等优点，主要缺点是系统成本高、油液粘度随温度变化引起工作性能的变化、且液压系统对油液的污染比较敏感，必须要有良好的保护和过滤措施。

At system level design, we select the feed-forward form to be benefic for stability and linearity design.

在电路设计方面，大的负载电容、高的时钟频率和高的线性度要求是电路设计的难点。

In addition, InP technology provides the following measurement benefits compared with other technologies available today: significantly flatter response at high frequencies; higher measurement accuracy because of the low-noise, nonconductive substrate; and higher reliability due to lower power consumption.

相较于其他的技术，InP技术还提供许多量测优点：在较高的频率下，可产生相当平坦的响应；低噪声的非传导性基板，可提高量测准确度；低消耗功率，可确保较高的可靠度。

The main problem of Camry's brake cacuum pump is that, when used in high temperature or high frequency, some internal parts of then pump may change, which results in the hardness of brake pedal, the abnormal noise of leakage, the turning light of the engine fault, etc..

凯美瑞刹车真空助力泵存在的问题主要体现在：在高气温或刹车使用频率高的极端使用情况下，真空助力泵内部的配件可能产生变化，导致刹车踏板变硬、出现漏气异音、发动机故障灯亮等情况。

The main problem of Camry's brake cacuum pump is , when operated in high temperature or high frequency, some internal parts of the pump may change(editor:break), which results in the hardness of brake pedal, the abnormal noise of leakage, the light of the engine fault, etc..

凯美瑞刹车真空助力泵存在的问题主要体现在：在高气温或刹车使用频率高的极端使用情况下，真空助力泵内部的配件可能产生变化，导致刹车踏板变硬、出现漏气异音、发动机故障灯亮等情况。

Mainly engaged in the project are: 1, lithium battery protection board, power type (power tools, electric vehicles, model aircraft) lithium battery protection board; 2, switching power supply, adapters, chargers; 3, high power audio, amplifier, communications power inverter power supply; 4, solar cells program, program charger, portable power supply; 5, special power supply / power supply, as well as smart power management system; 6, LED drivers, all kinds of high-frequency electronic circuit design, update problem-solving / Circuit Design and so on; Electronics 8514C has°load, four-channel Tektronix TDS2014B Oscilloscopes, Tektronix Current Probe, Power Instrument / high voltage tester, spectrum analyzer proposed, frequency meter, signal generator, the high and low temperature environment for the control room and other advanced equipment and a group of highly professional and well-motivated research in science and technology, design professionals; have the ability to achieve all-round, the perfect integration services.

主要经营项目有：1、锂电池保护板、动力类（电动工具、电动车、航模）类锂电池保护板；2、开关电源、适配器、充电器；3、大功率音响、功放、通讯电源、逆变电源；4、太阳能电池方案、充电器方案、便携电源；5、特种电源/智能电源以及电源管理系统；6、LED驱动，各种高频电子电路的设计，更新解难/电路设计等；公司拥有艾德克斯8514C电子负载、泰克TDS2014B四通道示波器、泰克电流探头、功率仪/高压测试仪、频谱分析议、频率计、信号发生器、高低温环境控制室等先进设备和一批专业素质高、干劲十足的科研技术、设计人才；有能力做到全方位、一体化的完美服务。

The TV service rate is higher than magazine, outdoors advertisement

电视的送达率比杂志高，户外广告的频率比杂志高，而杂志的影响比报纸大。

In order to obtain 266nm UV laser, we use a type-I phase match BBO crystal(θ=47.6°) pumped by the green laser above and a focus lens. the spectrum of 266nm UV laser is measured by a UV spectrometer. But we can not obtain the output power for absence of available spectroscopes.

在高功率、高重复频率绿光激光器的基础上，采用I 类相位匹配(θ=47.6°)的BBO 倍频晶体，实验中测得了266nm 激光光谱，但由于缺乏有效的分光措施无法测得输出功率。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！