two-channel system 中文意思是什麼
two-channel system
解釋
雙通道系統-
Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義 -
Chapter two is data sample of system. it will discuss the data conversion theory, 24bit e - a data conversion, mux - channel switch sampling technology, and emc design. among them, we will introduce the principle and application of ads 1251, application of photomos technology in mux - channel switch sampling, and emc design with hardware and software of gas feed controller, which has good performance in reliability
第二章介紹系統的數據採集，該部分包括24bit -采樣原理、多路信號切換採集技術和電磁兼容設計，其中，主要介紹了ads1251晶元的工作原理和應用， photomos技術在多路信號切換采樣中的應用，以及配氣控制器在硬體、軟體等方面所做的電磁兼容設計，通過這些設計使得系統具有很好的穩定性和抗干擾性。 -
Basic technical parameter requirements and methods of measurement on multichannel sound television receivers using the nicam two - channel digital sound - system
採用nicam雙通道數字聲系統多聲道電視接收機的基本技術參數要求與測量方法 -
Methods of measurement on receivers for television broadcast transmission - electrical measurements on multichannel sound television receivers using the nicam two - channel digital sound - system
電視廣播傳輸接收機測量方法.用nicam兩頻道數字聲音系統的多頻道伴聲電視接收器電氣測量 -
Recommended methods of measurement on receivers for television broadcast transmissions ; part 5 : electrical measurements on multichannel sound television receivers using the nicam two - channel digital sound - system
電視廣播接收機的推薦測量方法.第5部分:使用nicam雙聲道數字音頻系統測量多聲道電視接收機 -
Recommended methods of measurements on receivers for television broadcast transmissions - part 5 : electrical measurements on multichannel sound television receivers using the nicam two - channel digital sound - system
電視廣播接收機的推薦測量方法.第5部分:使用nicam雙聲道數字音頻系統多聲道電視接收機的電氣性能測量 -
Recommended methods of measurement on receivers for television broadcast transmissions - part 5 : electrical measurements on multichannel sound television receivers using the nicam two - channel digital sound - system
電視廣播發射接收機測量的推薦方法.第5部分:使用nicam雙聲道數字音響系統對多聲道電視接收機的電測量 -
Recommended methods of measurement on receivers for television broadcast transmissions - part 5 : electrical measurements on multichannel sound television receivers using the nicam two - channel digital sound - system ; amendment 1
電視廣播接收機的推薦測量方法.第5部分:使用nicam雙聲道數字音頻系統對多聲道電視接收機的電氣測量.補充件1 -
Applying two perpendicular polarized light states and a no - light state to express information, this new theoretical system covers : a ) whole architecture constructed from light processing, light transmission, electric control and photoelectric input and output ; b ) various computing units mainly consist of liquid crystal element and polarimeter ; c ) light bus mainly consists of interlinkage optic valves ; d ) ternary memory formed from semiconductor memory ; e ) register formed from optic fiber ring ; and i ) huge - numeral management based on the new concept of calculating path and calculating channel
這個理論包括：光處理、光傳送、電控制、綜合輸入輸出的總體結構；以液晶元件和偏振器為主的各類運算器結構；以互連光閥為主的光空間總線；以半導體存儲器為主的三值數據存儲器結構；以光纖環為主的寄存器結構；以算位、算道新概念為基礎的巨位數管理方案等。 -
The main content and contribution in this dissertation are as follows : 1. the rrs wireless channel characteristic and the two - path model are described and a simulation model of the pcm / fm rss system is introduced
本文的主要工作和貢獻之處: 1 .分析了再入遙測無線通道特性及雙徑模型，建立了pcm / fm再入遙測系統模擬模型。 -
Thereafter, the applications of go sequences in single - cell s - cdma systems are discussed in this thesis. in additive white gaussion noise ( awgn ) channel, interference components in s - cdma systems accommodating more users than the spreading factor is analyzed based on the theoretical bound of the periodic correlation mean square property. then two interference - suppressed s - cdma system models of augmented capacity are proposed, along with the analysis and simulation results
在加性白高斯噪聲（ awgn ）通道條件下，以序列集周期相關均方特性理論界為基礎，對序列個數大於系統擴頻因子的s - cdma系統干擾組成進行了分析，並基於截短wh序列提出了兩種高容量低干擾s - cdma系統模型，給出了分析和模擬結果。 -
Company now have independence develop ten many china patent and many independence intellectual property ' s software copyright ' s product ; company major product : cable television consumer management control system ( but look for address 2 - 8 branches allot style, 8 - 32 gather line style ) ; shoot frequently plus unfasten harass system ( crowd plus crowd unfasten, cent two sections, point channel shan unfasten ) ; video frequency number subsections plus unfasten harass system ; cable television network burglarproof sow system ; number cable television product is with number mmds ( microwave ) systematically ; general purpose type prevent thunder supply electric appliances, shoot frequently automate supply electric appliances, but look for address control supply electric appliances ; power supply prevents thunder protection product ; pass flow branch, dispenser, split utensil, cavernous wave utensil, power supply inserts utensil, but transfer attenuator, but transfer equalizer wait for
目前擁有十多項中國專利和多個自主知識產權的軟體版權的產品；公司主要產品：有線電視用戶管理控制系統（可尋址2 - 8戶分支分配式、 8 - 32戶集線式） ；射頻加解擾系統（群加群解、分兩段、按頻道單解） ；視頻數字分段加解擾系統；有線電視網路防盜播系統；數字有線電視產品與數字mmds （微波）系統；通用型防雷供電器，射頻自動控制供電器，可尋址控制供電器；電源防雷保護產品；過流分支、分配器，分流器、陷波器、電源插入器，衰減器、均衡器等。 -
This paper can be mainly summarized in to three aspects as follows : 1. firstly, the paper analyzes the system model of mimo, derive the formulas of channel capacity for the slow flat rayleigh fading channel, analyzes two improtant facts affected the system capacity, and then via the computer simulation we compare the channel capacity between the tranditonal wireless system and mimo system
本文主要做了以下幾個方面的工作: 1 .分析了mimo系統的通道模型，理論推導了慢衰落平坦瑞利通道下mimo系統的通道容量公式，簡要分析了影響系統容量的兩個重要因素並且通過計算機模擬比較了傳統無線系統與mimo系統之間的通道容量。 -
Jw marriott hotel is located in the flourishing city center for your business, travel and conference. room with the complete facilities, remote control tv, the telephone equipped with message mailbox of pronunciation, a lot of materials ports, etc. room intro about 517 guestrooms, suites and apartment with the super - large windown for viewing the architecture and mountain, water of chongqing. rooms facilities : color tv in english, japanese and movie channel, sofa, heated coffee and tea set, message system, conditioner, computer access, two telephone lines and the cosy office area more seleted electristic jacks and the super bathroom
客房設施包括：彩電提供英文臺日文臺及電影臺節目沙發電熱咖啡茶具迷你吧語音留言室溫調控電腦介面兩條電話線，以及舒適的工作區域帶多選電插孔，超大衛生間里豪華淋浴房與盆浴各自獨立。 -
The chapter 1 of this text make brief introduction of medium and small sized enterprises developping condition in our country, combining to analysis financing predicament of medium and small sized enterprises, point expatiate the problem of medium and small sized enterprises in our country, main proceeds with two aspects of direct financing and indirect financing elucidation : the mortgage guarantee loan to medium and small sized enterprises procedure complicacy, limit numerous, financing institution business operating of mechanism system restrict the credit input to the medium and small sized enterprises ; the medium and small sized enterprises lack the channel and place to < wp = 7 > proceeding ownership of a share in direct financing, lack bond financing credit, did not become the diverse capital market and so forth of a series of problem
本文第一章對我國中小企業發展狀況作了簡單介紹，並對我國中小企業融資困境進行了分析，重點闡述了我國中小企業融資中存在的問題，主要從間接融資和直接融資兩個方面進行說明：中小企業抵押擔保貸款程序復雜，限制繁多，金融機構商業化的經營機制制約了對中小企業的信貸投入；中小企業在直接融資中缺乏進行股權融資的渠道和場所，債券融資資信不足，未形成多樣化的資本市場等一系列問題。 < wp = 5 >本文第二章說明我國中小企業可以吸取國外的先進經驗，採取融資租賃的方式緩解中小企業融資難的問題。 -
Influence of atomic coherence on rydberg - atom stabilization is revealed. then, the effects of the relative phase of the four lasers on the steady - state photoelectron spectrum in a two - channel ionization system in which the intermediate states are two sets of quasi - continua states are also investigated
最後研究了含兩個彼此耦合自電離態的原子系統的離化性質，探討了兩自電離態間的強耦合及低自電離態和連續態間的耦合對光電子產額的影響，給出了系統發生相干俘獲。 -
In a two - channel system, the exhaustive equilibria are evaluated first, and then the relationship between initial demixing vectors and the equilibria is disclosed. the result shows that there are no spurious solutions in fastica when the basic assumptions in ica model are satisfied
其中以二維系統為例，首先給出所有的平衡點，結合收斂域和平衡點的對應關系，指出在滿足ica模型的基本假設條件下， fastica演算法不存在對應獨立分量之外的偽解。 -
Bring forward one dds - based two - ram two - channel digital waveform generator which use cpld technology to improve system ' s integration
探討了一種用cpld實現的基於dds的雙ram雙通道數字波形發生器的設計。 -
This system is based on two altera ’ s statixii series fpga chips ep2s180f1020c5, and the tunner dtt7579 and the chip ad9433, together composed the main hardware platform. the hardware description system running on the fpga is the core of digital down converted sysgtem, synchronization system, estimation and equalization of channel system, 3780 - point fft ofdm demodulation system, frequency equalization system and ldpc decoding
以兩片altera公司的stratixii系列ep2s180f1020c5級聯為基礎構建了系統主硬體處理平臺，結合湯姆遜公司的調諧器dtt7579以及ad9433組成了系統的硬體構架fpga可描述硬體系統的核心任務包括數字下變頻，同步和通道均衡與估計， 3780點fftofdm解調，頻域均衡， ldpc解碼。 -
Technical specification for transmission of two - channel digital sound with broadcasting television system pal - d
Pal - d .電視廣播附加雙聲道數字聲技術規范
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