概要分析了四相输电的主要优点。
The main advantages of 4-phase power transmission are analyzed briefly.
亚洲股市经过连日股票抛售后星期四相对平稳。
Asia's stock markets are calming down after days of heavy selling.
实现对四相步进电机的启动，停止控制、正反转控制。
To achieve the four-phase stepper motor to start, stop control, reversing control.
驱动方式为四相单四拍方式，各线圈通电顺序如下表。
Four-driven approach to making four single-phase, the coil electrifying sequence the following table.
这是在AWGN信道下四相键控调制，以及其性能分析。
This is the AWGN Channel 4 phase shift keying modulation, as well as its perf...
将A序列四相双极性码与常用二相双极性码的性能作了比较。
The performance of period quarternary bipolar codes based on Family a is compared with that of binary bipolar codes usually to be used.
该文提出了基于瞬时无功功率理论的四相输电谐波电流检测方法。
This paper presents four-phase transmission harmonic current detecting method based on instantaneous reactive power theory.
四相输电系统的故障分析，是研究四相输电理论的一项重要内容。
Four-phase transmission system fault analysis is one of the important studies on four-phase transmission system theory.
其中重点介绍了四相控制法，并且详细推导证明了三个基本公式。
Four-phase control method has been introduced particularly and three basic principle expressions are proved.
所提出结构的关键特点是有关其电源完整性的解决方法和四相设计。
The key feature of the proposed architecture is the solutions of its power integrity and four-phases design.
四相架空输电线路对称性好，线路及杆塔结构简单，在多相输电线路中具有独特的优势。
Because four-phase transmission system has the advantages of good symmetry and simple structure of its lines and poles, it has obvious superiority over other multi-phase power transmission system.
四相架空输电线路对称性好，线路及杆塔结构简单，在多相输电线路中具有独特的优势。
Four-phase overhead transmission lines have special advantages in high phase order transmission lines, because of the good symmetry and the simple structure of its lines and poles.
四相相移调制是利用载波的四种不同相位差来表征输入的数字信息，是四进制移相键控。
Quadrature phase shift carrier modulation is used to represent the four different phase inputs of digital information, is quaternary phase shift keying.
季节冻土是一种含冰晶的特殊土水体系，由土颗粒、冰、孔隙水、气组成的四相地质体。
Seasonal freezing soil is a kind of special soil-water system in which there is ice crystal, and it is geology object composed of soil grain, ice, pore water, and gas.
本发明涉及一种单电流传感器的四相（8/6极）开关磁阻电机控制装置及其实现方法。
The invention relates to a four-phase (8/6 pole) switch magnetic resistance motor control device of a single current sensor and a realized method thereof.
对单频信号、线性调频信号、二相编码信号、四相编码信号进行了脉内特征分析，给出了仿真结果。
The in-pulse feature analysis is made on the signals with single-frequency, and those signals respectively being linearly frequency-modulated, phase coded. The simulation results are given.
偏移四相相移键控（OQPSK）是一种适用于在限带非线性信道中使用的高效恒包络数字调制技术。
The offset quadrature phase-shift-keyed(OQPSK) is an effective digital constant envelope modulation for band-limited nonlinear channel.
开市的头15分钟交易中，日本基准的日经225指数同周四相比，下跌185.14点，或2.07%。
In the first 15 minutes of trading, Japan's benchmark 225-issue Nikkei Stock Average fell 185.14 points, or 2.07%, from Thursday.
并通过FPGA设计的数字比较器，同步产生多路PWM电流波形，实现对四相步进电动机转角进行均匀细分控制。
The digital comparator designed with FPGA generates several PWM current waveform synchronously, to realize the step angles even division control for four-phase stepping motor.
并通过FPGA设计的数字比较器，同步产生多路PWM电流波形，实现对四相步进电动机转角进行均匀细分控制。
The magnitude comparator designed with FPGA generates several PWM current waveform synchronously, to realize the step angles even division control for four-phase stepping motor.
三相变四相电力变压器是一种新型平衡变压器，由此可以实现四相输电方式，也可以用于电气化铁道的AT供电方式。
The transformer may be applicable to either four- phase transmission system or AT power supply system in electric railways.
在8 2B型计算机实验台设计制作出一套计算机时标实验系统，包括四相节拍电平及两相工作脉冲，利用此时标系统可组合出计算机所需要的各种时序信。
Design and make a set of computer time scale experiment system on 82B Lab desk, include four phase time eletronic level and two phase working pulse.
这个四居室的雅致书房能够在大家庭娱乐室和相毗邻的小餐厅及厨房的喧闹中提供一份静谧。
The elegant study in this 4-bedroom home provides quiet privacy from the big family room and adjoining dinette and kitchen.
四处看看。照张相。
本文描述了用毛细管气相色谱对0.8％四氟菊酯驱蚊药液的定量分析方法。
This paper describes a capillary column gas chromatography method for quantitative analysis of an 0.8 % solution of transfluthrin repellent.
本文描述了用毛细管气相色谱对0.8％四氟菊酯驱蚊药液的定量分析方法。
This paper describes a capillary column gas chromatography method for quantitative analysis of an 0.8 % solution of transfluthrin repellent.
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