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Firstly, harmonic detection method using ip,iq algorithm, which is based on the instantaneous power theory proposed by H.Akagi, is introduced briefly and is extended to detect positive or negative sequence of arbitrary order harmonic in single-phase system, three-phase three-wire system or three-phase four-wire system.

首先，本文简要介绍了基于瞬时功率理论的谐波电流检测方法——i_p，i_q算法，并将之推广应用于单相系统、三相三线制系统和三相四线制系统中任意次数谐波的正序、负序有功、无功分量的检测，大大拓宽了该优良瞬时谐波检测算法的应用范围。

The main work of this paper is as follows:(1) Ignoring other small content and indissoluble salt, only considering sodium chloride and sodium sulphate, and suggesting these is no Chemical reaction between soil and salt, the phase change rule of salty soil follow the phase change rule of 〓 ternary water and salt system, which obey the phase equilibrium theory.

本文主要进行了以下研究工作：(1)在只考虑NaCl与Na〓SO〓两种易溶盐，而忽略其它在盐渍土中含量与溶解度均较小的盐类，并假定NaCl与Na〓SO〓不与土颗粒发生化学反应的基础上，盐渍土的相变规律实质上是〓三元水盐体系的相变规律，并服从相平衡理论。

PE or PEN line should connect to upper pole of single phase 3 pole socket, 3 phase 4 pole socket and 3 phase 6 pole socket.

单相三孔、三相四孔及三相五孔插座的接地或接零线接在上孔。

The definition of phase number for multi-phase machines and the winding structure for six-phase induction machines are described in this paper.

引言自上个世纪初以来，电力发电、输配电系统都是三相系统。但目前三相电机的地位已经受到一定的挑战。

The method of fault analysis for six-phase transmission is very complicated, and the research on the protective scheme for six-phase transmission lines is few at the present time, and it had badly confined the practical application of six-phase transmission.

在我国由于耕地面积的减少和地理环境的制约，节约线路走廊占用空间，提高线路的功率传输密度已经成为电网建设需要考虑的一个重要因素，在这方面六相输电方式有着独特的优势。

The main contributions of the paper are as follows:(1) The paper expounds the characteristics of power transmission of EHV and UHV six-phase transmission lines. Researching results show that six-phase can utilize the overhead transmission right-of-way efficiently, and improve the density of power transmission. At the same time, the electric field on surface of conductor, the power frequency electric-magnetic field at ground level can be controlled within the range of permission for six-phase transmission lines.

本文对六相输电线路的功率传输特性和几种继电保护原理进行了深入的研究和分析，取得如下成果：(1)详细分析和研究了六相输电线路在超高压和特高压两个电压等级上的功率传输特性，研究结果表明，六相输电线路能够最大程度地利用线路的走廊空间，明显提高系统的功率传输密度，并且线路的表面电场强度，以及线路下方的工频电场和磁场强度完全可以控制在规定允许的范围内。

The results suggest that the electron density of the interface between GP zone and the matrix is coherent under the first order approximation, thus particles of GP zone are prone to growing, while β phase is not coherent, which will restrain recrystalization particles of β phase from growing, however β phase is coherent to enhance resistance to deformation of the alloy under high stress.

结果表明：Al-Mg-Si合金GP区与基体界面电子密度在一级近似下连续，GP区粒子易于长大，而β相不连续，抑制了β相再结晶晶粒的长大，但它在高应力下呈现连续，从而提高合金变形抗力。

Computer simulation ; Precipitation ; Microscopic phase-field model ;γ'（Ni_3Al） phase ;θ（Ni_3V） phase ; Atomic pictures ; Order parameters ; Coherent elastic strain energy

国家自然科学基金；国家高技术研究发展计划(863计划)计算机模拟；沉淀；微观相场模型；γ'相（Ni_3Al）；θ相（Ni_3V）；原子图像；序参数；共格弹性应变能

According to the character of each period, we divide it into four sectors, namely traditional grammer phase, the beginning of contemporary linguistics, structuralist grammer phase and transformational generative grammar phase.

西方语言学的发展从公元前四五世纪开始到现在经历了一个漫长的时期，语法学家们对语言理论的探索也走过了艰难而曲折的道路，但他们对语言学的发展作出了巨大的贡献。

Traditional grammer phase ; The beginning of contemporay linguistics ; Structuralist grammer phase ; Transformational generative grammar phase

从历时的角度回顾了西方语言学的发展历史，并根据各个时期的特点，把它分为四个阶段：传统语法学阶段、现代语言学的开端、结构主义语法学阶段、转换生成语法学阶段，并概述了各个时期的特点及重要贡献。

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜，这支南方球队将会更坚持其一贯而有效的4-3-3阵型，洛佩斯和塞德维奇将取代受伤缺席的詹保罗，和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外，西方较自由的生活方式对年轻人的影响增大。