查询词典 ac

This paper introduces a kind of intelligent digital AC millivoltmeter that is based on the chip microcomputer and the design of voltage's real virtual value measuring.

介绍了一种基于单片机和测量电压真有效值方案设计的智能数字交流毫伏表。

The system is designed to construct an Sample Digital Display Ac Millivoltmeter, with a MCS51 single chip computer as the key, complimented by necessary analog circuit.

本系统以MCS51单片机为控制核心，辅以必要的模拟电路，构成了一个简易数字显示交流毫伏表。

For this purpose, the minimum modulus eigenvalue of power flow Jacobian matrix of AC/DC power system is researched; by means of the sensitivity index of nodal voltage to reactive power variation and combining with participating factor, the bus or region where the voltage instability could happen most possibly are judged to provide decision-making foundation for the configuration of reactive power compensation device in power system.

该方法研究了交直流系统潮流方程雅可比矩阵的最小模特征值，以节点电压对无功功率变化的灵敏度为指标，结合参与因子，判断全电网中最有可能发生电压不稳定的节点或者区域，从而为系统无功功率补偿装置的配置提供决策依据。

Simulation results show that AC servo system based on proposed mixed control strategy can satisfy the systems need of speediness、Stability and robustness preferably.

仿真结果表明，应用本文所设计的RBF神经网络与PID复合控制器能获得较高的动态和稳态性能，并对参数变化和负载扰动具有良好的鲁棒性，可很好地满足系统的高性能指标要求。

Characteristic number of inertia moment of gray level co-occurrence matrix can reflect the feature of complexity of image gray space. Optimum space coefficient of LOG operator can be ac-quired effectively and most noise of images can be removed.

通过纹理分析，利用灰度共生矩阵惯性矩特征值能够反映图像灰度空间复杂度的特性，成功获取了LOG边缘检测算子最佳空间系数，抑制了图像中的大部分噪声。

Rectifier motor - so excited DC generator string for AC motor, and the fait accompli of such motors, due to alternating current in the magnetic field and the armature circuit, while turning, the moment the direction of Constant Couple remain unchanged, it is turning non-stop.

整流电动机--使串激直流发电机，作交流电动机用，即成此种电动机，因交流电在磁场与电枢电路中，同时转向，故力偶矩之方向恒保持不变，该机乃转动不停。

Audio is commonly stored using the Dolby Digital (AC-3) and/or Digital Theater System formats, ranging from monaural to 5.1 channel "Surround Sound" presentations.

声音普遍被储存使用杜比数传及数传戏院系统格式，排范围从单耳到 5.1个通道 \"包围声音 \"发表。

With her first Master's Degree from Shanghai Institute of Foreign Trade ( www.shift.edu.cn ), focusing on international business communication strategy and her second Master's Degree in International Affairs from Norman Paterson School of International Affairs in Canada ( www.carleton.ca/ npsia /), she continues to pursue Doctoral degree with Leicester Business School of De Montfort University, the UK www.dmu.ac.uk

她在上海对外贸易学院取得国际商务交流的硕士学位，之后在加拿大诺曼彼得森外事学院取得国际关系专业的硕士学位，专注于国际贸易政策与国际发展政策。目前她在英国的莱斯特商学院攻读管理学的博士学位。

The soft starter of AC motor based on singlechip is presented in this paper.

本文针对基于单片机技术的交流电机软起动器的工作原理、软硬件电路、实际应用、发展趋势进行了详细阐述。

AT PRESENT,THE COMPANY MAINLY DEVELOP AND PRODUCE DC MOTOR STARTER ,AC MOTOR STARTER AND TURBOCHARGERS.

企业经过改制后，现主要生产和研发直流起动机、交流发电机、涡轮增压器等汽车零部件。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。