line current 中文意思是什麼
line current
解釋
輸送管線上電流-
In this thesis, the author analyses the deficiency in detecting and controlling function of the computer detecting and controlling system utilized in present transforming station. the strategy of design of software on operation and direction of 5 00kv transformer station is presented. it points out that we can deduce the mathematic analytical formula using the current, voltage and power of two terminals of transmission line as input. on this basis, we do realtime calculation of 500kv transmission line ' s parameter. we can also deduce the linear analytical formula of three - winding autotransformer ' s resistence using its current, voltage and power as input. the corresponding software is programmed on this basis
論文提出以輸電線路本端和對端電流、電壓、功率作為輸入量，導出了超高壓長線的波阻抗和傳播常數的數學解析式，在此基礎上進行了500kv輸電線路實時參數計算；提出以三繞組自耦變壓器的電流、電壓、功率為輸入量，導出了自耦變壓器繞組的電阻、電抗的線性解析式並進而對變壓器的實時參數進行計算；在此基礎上編制了相應的軟體。 -
Technique of transmitting data via power line （ pl ） ， a new technique developed in recent years ， is used to automatize the free collecting system in public service and the management of uptown service 。 this article discussed the advantage ， disadvantage and the current state of the power line carrier communication 。 the advantage ， method and current state of using spread spectrum technique in power line communication are discussed 。 then the characteristic of low voltage power network was also compendious analyzed 。 in this paper ， after introducing the principle of ssc ， design of hardware and software of the system are been discussed 。 this system has been put into use ， the result has proved its high stability and reliability
本文研究旨在提供一種利用低壓電力供電網路、低成本、高可靠地實現公共事業收費自動化和小區物業管理智能化的技術應用。討論了電力線載波通信的優、缺點及現狀，擴頻技術在電力線載波通信應用的優點、方式和現狀，並對低壓電力線網路的特性進行了簡單的分析。在闡述了擴頻通信的基本原理的基礎上，本文詳細地介紹了電力載波遠程抄表系統的具體實現，包括硬體模塊和管理軟體本系統已投入運行，具有較高的穩定性和可靠性。 -
The current travel the main contents of culture stanzas to include the building mountain district exquisite article the resources to display, the literature performance wait the activity. the building mountain that rites part is solemn is cultured, and perform the part of and happiness and crazy, outstanding suburb color, mold the clear suburb topic of to emerge with the consciousness with the the new atmosphere to travel the area of big area, culture. the current travels the culture stanza with the happy suburb, sahuan building mountain " for the topic, travel the culture stanza the opening ceremony and saint mountain the scenery to spend a holiday the area to start practice the celebration ceremony the rites, building mountain the economic trade to talk over the meeting with the tenth building mountain, continuously the fire of the human civilization the motherland is good, the capital city is beautiful " three corpus activities of activities of publicity educations are with the stanza of white grass cookhouse ground sahuan son ", ten cross river the light stanza, celebrate the 7 1 " hall the whole image for ascending folk king of country whip performing, cloud residing the the series the activity, the spending the hole, silver the fox the hole, fairy the the hole, cloud the water hole " fourth holes look foring the competing and go to the countrying is a farmering, cut in lining " experience personallying a day swiming sixth items prop upping the activity to main contents, molding the root in peking the, hole the kingdom " ; release the north line of building mountain to travel the hallway, and adjust the mountain area the environment of economic construction, ecosystem, and promote the farmer to increase to accept, quickly the building mountain travel a developments step, and go on a tour for whole municipal and periphery visitor, recreational, the amusement invest with chinese and foreign businessman to start a business the offering is more, more ideal choice. attraction the more people travel the building the mountain, investment into the building mountain, and further push that area to completely develop
儀式部分莊重典雅，表演部分歡樂狂野，突出郊野色彩，塑造鮮明的郊野主題和親和意識，展現房山旅遊大區文化名區的新氣象。本屆旅遊文化節以「 happy郊野撒歡房山」為主題，以第十屆房山旅遊文化節開幕式暨聖蓮山風景度假區開業慶典儀式房山經貿洽談會續燃人類文明之火「祖國好京城美」宣傳教育活動三項主體活動和白草畔野營地「撒歡兒節」十渡河燈節慶「七一」堂上鄉村民俗霸王鞭表演雲居寺祈福迎祥系列活動「石花洞銀狐洞仙棲洞雲水洞」四洞尋寶比賽及下鄉務農「插隊」體驗一日游六項支撐活動為主要內容，塑造「北京根祖，溶洞王國」的整體形象推出房山北線旅遊走廊，調整山區經濟結構，優化生態環境，促進農民增收，加快房山旅遊黃金圈建設步伐，為全市及周邊遊客出遊休閑娛樂和中外客商投資創業提供更多更理想的選擇。吸引更多的人旅遊到房山投資進房山，進一步推動該區全面發展。 -
Our company size up the current situation introduction two domestic well - known brands in time melamine faced board and stick the surface production line and polyester board production line. shunde yong mao decorative board co., ltd. speciality production mdf, particle board and melamine faced board, polyester board and processing thicknesses 1. 5mm - 30mm various types of bright lightan and dark light wooden texture embossmen, rough one and rough one furniture board strengthen and compound floor, etc
廣東省永茂裝飾有限公司，是專業生產中纖板刨花板防潮板三聚氰氨板聚脂板和加工厚度3毫米- 25毫米各式亮光啞光木紋浮雕麻面傢具貼面板和高級強化復合地板等裝飾板，產品均達到國家規定的環保標準。 -
Current date line
當前日期線 -
The current account balance puts above the line all credits and debits representing flows of goods, services, and gifts.
經常項目差額把表示商品、勞務和贈與等流量的全部貸方和借方項目都放在線之上。 -
Each segment of line current can be approximated as a hertzian dipole if each segment is much smaller then a wave length
因此任意線電流在三度空間之三維向量電磁場即可以赫芝電偶極完整之遠場及近場近似合成之。 -
An arbitrary shaped line current on a horizontal plane is divided into many small line segments and approximated by hertzian diploes, then both the near and far em - field of the line curennt is approximated by the summation of the complete near and far fields of hertz dipoles
水平面上任意形狀線電流分割為許多小段之電流，每一小段之電流近似為赫芝偶極，則在三度空間任意座標平面上無論遠近之電磁場即可以赫芝偶極之遠近完整電磁場加總合成近似之。 -
For a x - directed line current with lengh much smaller than a wave length, the e - field pattern on coordinate planes in 3 - d space in the region from much smaller than line length to one or two wave length, the synthesized pattern by summation of the field of many line segments of hertz dipoles is independent of the number of segments, i. e. same field as a single hertz dipole
以水平面上三角形甚小於波長線電流為例，分割為若干小段之赫芝偶極所加總合成在三度空間任意座標平面上距離從甚大於線長到一兩個波長區域之電場場型與分割小段數量無關，即等同於一單一赫芝偶極之場型。 -
The poynting vector that represent the flow of electromagnetic power density on a sphere from a linear dipole antenna is approximated by the summation of the field of segmented line current as hertz dipoles
以赫芝偶極之電磁場合成任意長度偶極天線在球面上電磁功率密度流之時變玻因亭向量。 -
Boundary integral equation of electromagnetic field with line current element of external source
存在外源線電流元的電磁場邊界積分方程 -
The near and far field properties of line current of arbitrary shape is demonstrated in this example
本例以赫芝電偶極電磁場合成之近似結果，驗證偶極天線遠場及近場之特性。 -
Abstract : the ever increasing number and power of polluting loads ( non - linear, time - variant loads and so on ) connected to the electric power network cause a significant distortion in the line voltage and line current
文摘:電力系統電網中逐漸增多的「污染性」負荷（如非線性負荷、時變負荷等）正在使電網中的電流、電壓出現越來越多的、顯著的畸變。 -
These new methods adopt the circuit information contained in the power supply line current to realize the fault diagnosis. it can increase the fault coverage, reduce testing cost and improve the quality and reliability of ics
它通過從電源電流信號中提取有效的信息來進行故障診斷，能夠提高故障覆蓋率，降低測試成本並提高集成電路產品的質量與可靠性。 -
To reduce the harmonics in the line current, the random pwm mode is adapt. related to the typically constant pwm carrier frequency and its high harmonics, modulation of this frequency can be used to decrease emi and cost no more gain
為了抑制輸入電流中一些幅值較大的諧波成分，利用dsp控制的特點，電路採用了隨機pwm方式，在不增加系統成本的前提下，有效地抑制了輸入電流的高次諧波含量。 -
The conventional switching power supply usually use a diode rectifier followed by a bulk capacitor to convert ac voltage to dc voltage, resulting in the pulsating waveform of the input ac line current, low power factor ( generally 0. 65 ) and high harmonic line current
傳統的開關電源設備通常採用二極體橋來進行整流和一個較大的電解電容來進行濾波以實現輸入電壓的交直流轉換，導致輸入電流為一個很窄的脈沖波並含有較多的諧波分量，功率因數變低（通常只有0 . 65 ） 。 -
The prototype test results indicate : voltage mode and current mode ac - ac mode ac / ac converters with high frequency link have the advantages such as high frequency electrical isolation. simple topology, two - stage power conversions, high power density, bidirectional power flow, good line current waveform, no audio noise, high converting efficiency, and high input power factor etc. this kind of converter lay the key technical foundation on new type regulated sinusoidal ac power supply, electronic transformer, ac regulator, and wave converter etc
試驗表明，這類變換器具有高頻電氣隔離、電路拓撲簡潔、兩級功率變換（ lfac hfac lfac ） 、功率密度高、雙向功率流、無音頻噪音、變換效率高、網側功率因數高等優點。為新一代正弦交流穩壓器、電子變壓器、交流調壓器、同頻波形變換器的實現奠定了關鍵技術基礎。 -
This paper analyzes the study and developmeni of the distfibuted power line protection & monitoring device on abroad and home. based on the demand of power depwtment, a full distfibated multifunctional protection & monitoring device faced the distributed line is studied. this instrument not only can perform functions of scada system, but also integrate the functions of the distance protection and three sects line current protection
本文分析了國內外配電線路微機保護和測控裝置的研究和發展狀況，針對現有電力部門的需求，設計並實現了一種面向配電線路的全分散式的微機保護和測控裝置，該裝置不僅實現了電力系統的實時測控和三段式電流保護功能，而且還率先集成了配電線路的微機距離保護。 -
With numerical calculations, the influences of device structure, material parameters and operating conditions on the distributions of the equipotential line, current density, carrier concentration, optical field and temperature profiles have been investigated, and the interactions between the correlative characteristics have been studied at the same time
通過對這些相互關聯的特性進行數值計算，分析了器件結構、材料參數和工作條件等對等勢線分佈、注入有源區的電流密度、有源區中的載流子濃度、光場強度以及溫度分佈的影響，並研究了這些特性之間的相互影響。 -
Its test results indicate : voltage mode inverters with high frequency link have the advantages such as high frequency electrical isolation, simple topology, two - stage power conversions, high power density, bidirectional power flow, good line current waveform, low audio noise, high converting efficiency, and high input power factor etc. this kind of converter lay the key technical foundation on new type high power density, high efficiency and low cost asi
設計的1kva270v 10 % dc / 115v400hzac單極性移相控制雙向電壓源高頻環節逆變器原理試驗表明，這類逆變器具有高頻電氣隔離、電路拓撲簡潔、兩級功率變換（ lfac / hfac / lfac ） 、功率密度高、雙向功率流、音頻噪音低、變換效率高、網側功率因數高等優點，為新一代高功率密度、高變換效率、低成本航空靜止變流器奠定了關鍵技術基礎。
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