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- In order to eliminate the transient current and ensure the test precision, this paper introduces the principle and the method of phase selection of the AC based on FFT(Fast Fourier Transform Algorithm) . 为了消除暂态电流，本文阐述了一种基于快速傅立叶变换(FFT)的交流选相合闸技术的原理以及实现方法，保证了检测精度。
- This paper proposes a novel approach to transient-based faulty phase selection (FPS) in EHV transmission systems.This approach stems from analyzing the coupling relation among three phase conductors. 在分析超高压输电线路三相导线间耦合关系的基础上，该文提出了一种基于暂态量的故障选相方案。
- What has been said in section “Measuring the RIF Field Strength in the Frequency Range up to 30 MHZ”also applies to RFI field-strength measurements, of course without the phase selection . 在测量达到 30个百万赫兹的频率范围的 RIF 领域力量的节中被说也适用于 RFI 领域- 力量的测量什么, 当然没有状态选择。
- This paper describes the principle of adaptive reclose and studies some problems in the implemention of the adaptive reclose on the basis of phase selection of the microcomputer relay protector. 摘要对自适应重合闸的原理进行论述，并在微机保护故障选相的基础上，探讨了自适应重合闸实施中的几个问题，结合超高压输电线进行了仿真计算。
- Accordingly, five immiscibleW-based binary fcc-bcc and hcp-bcc metal systems, i.e, Cu-W, Ag-W, Au-W,Sc-W and Y-W systems, and miscible Co-Nb systems, were selected to studythe formation of metastable phase selection and glass formation ability. 为此,本论文选择了五个生成热为正的W基二元fcc-bcc和hcp-bcc金属系统,即:Cu-W、Ag-W、Au-W、Sc-W和Y-W系统,和一个生成热为负的Co-Nb系统来研究其亚稳相选择和非晶形成能力。
- phase selection making control device 选相合闸控制装置
- The Co B/SiO 2 amorphous catalyst was prepared via chemical reduction and was employed in the liquid phase selective hydrogenation of cinnamaldehyde(CMA) to cinnamyl alcohol(CMO). 采用化学还原法制备了Co B/SiO2 非晶态催化剂 ;测定了其在液相肉桂醛 (CMA)选择性加氢反应中的催化活性以及不同反应时间内CMA的转化率和对肉桂醇 (CMO)选择性 .
- The child is going through a difficult phase. 那孩子正经历困难的阶段。
- The two sets of traffic lights were out of phase. 那两组交通灯不同步。
- They have decided to phase in the new techniques. 他们已决定逐步引入新技术。
- The windshield wipers are out of phase now. 挡水玻璃刮水器现在动作不协调。
- compare breaths and phases selection theory 群体比幅比相
- coded AC phase selective track circuit 交流电码相位选择轨道电路
- A High-Speed Phase Selection Scheme Based on Mathematical Morphology Gradient 基于数学形态学梯度的快速选相方案
- phase selective alternating current polarography 相敏交流极谱法
- Phase selective A.C. voltammetry 相敏交流伏安法
- gas phase selective hydrogenation 气相选择加氢
- A phase or an aspect of a logically developing process. 契机一个按逻辑发展过程的阶段或方面
- Phase selection of microcomputer-based protection in extra high voltage line 超高压线路微机保护的选相问题
- British Leyland has announced plans to phase out some of its cars next year. 英国雷兰德汽车公司已宣布他们明年将逐步淘汰某些型号的汽车的计划。
