three-level channel 中文意思是什麼
three-level channel
解釋
三階通路-
At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel
首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。 -
The second part, have carried on the analysis of real example to the international competitiveness of the steel branch of industry of our country : of our country steel and iron industry basic competitiveness analyse mainly from " key element supply with " whether strength launch, including three respects of manpower, financial resources, material resources, are shown as high - level talent ' s shortage on the quantity of the manpower resources, it is unreasonable that the structure is shown as, personnel ' s whole quality is not high ; the resource respect of financial resources, shown as the capital market hypoplasia, industry ' s financing channel is relatively narrow, studies and uses incompletely about the modem investment and financing management method, the system defect of financing and deterioration of the environment for financing cause profit ability to be low
第二部分，對我國鋼鐵行業的國際競爭力進行了實證分析：我國鋼鐵工業基礎競爭力分析主要從「要素供給」實力方面展開，包括人力、財力、物力資源三個方面，在人力資源的數量上表現為高層次人才短缺，結構上表現為不合理，人員整體素質不高；財力資源方面，表現為資本市場發育不全，產業融資渠道較窄，對現代投融資管理辦法研究和使用不夠，融資體制缺陷和融資環境惡化導致盈利能力低下。物力資源主要表現為礦產資源相對不足，水資源短缺，對交通運輸構成壓力等。 -
The variations in trace element contents and ratios may hold up a mirror to the lake - level fluctuations and climatic changes, which, in turn, have exerted a direct and important effect on the sequence stratigraphic development. collectively, the reservoir rocks from the yanchang formation consist dominantly of the delta front subfacies subaqueous distributary channel and channel - mouth bar microfacies and delta plain subfacies subaerial distributary channel microfacies fine - grained feldspar sandstones and siltstones. the reservoir rocks have been subjected to three stages of diagenetic and porosity evolution : ( 1 ) the porosity reduction by the mechanical compaction and chemical pressure solution during the early diagenetic stage ; ( 2 ) the porosity increase by the dissolution during the a substage of the late diagenetic stage, and ( 3 ) the porosity reduction by the cementation and filling during the b substage of the late diagenetic stage
系統的儲層特徵研究表明，該區延長組儲層成因類型主要為三角洲前緣水下分流河道、河口砂壩及三角洲平原水上分流河道微相細粒長石砂巖、粉砂巖；儲層巖石經歷了壓實，膠結，溶蝕等成巖作用，歷經早成巖機械壓實和化學壓溶孔隙縮小期、晚成巖a亞期溶蝕作用孔隙擴大期及晚成巖a亞期（ b亞期）膠結充填孔隙縮小期三個成巖-孔隙演化階段；儲層物性總體上具有較低孔滲、低孔滲的特點，孔隙類型主要為粒間溶孔、殘余粒間孔隙、粒內溶孔、晶間孔及晶間溶孔，裂縫不發育，儲集巖排驅壓力和中值壓力較高，孔隙結構類型以細小孔-微孔隙，微細喉-微喉型為主。 -
According to the request of this subject, we have developed the system hardware and software for the slave device and the inspection software running on the pc. in this paper all of the followings is illustrated detailedly, such as the research on the principles of measurement and its realization, three means of water - level measurement that are separately based on photo electricity coder, pressure sensor and potentiometer ; selection of the microchip, we choose an advanced integrated soc ( system on chip ) microchip c8051f021 as the main controller ; realization of signal sampling, processing and its conversion in the mcu ; application of high precision 16 bits adc cmos chip - - ad7705 in our system, designing its interface with the microchip and relevant program ; using a trickle charge timekeeping chip ds1302 in the system which can provide time norm and designing of its i / o interface and program ; additionally, a 4 ~ 20ma current output channel to provide system check - up using ad421. in the system, ad421, ad7705 and the microchip compose spi bus ; to communicate with the master pc, here we use two ways which are separately rs232 and rs485 ; moreover, there are alarm unit, keyboard unit, power supply inspection unit and voltage norm providing unit in the system
針對研製任務的要求，課題期間研製了下位機系統硬體和軟體，開發了上位機監控軟體，其中所作的具體工作包括：測量原理的研究和在系統中的實現，在本次設計中用三種方法來進行水位測量，分別是旋轉編碼器法、液位壓力傳感器法和可變電阻器法；主控晶元的選擇，我們選用了高集成度的混合信號系統級晶元c8051f021 ；實現了信號的採集和處理，包括信號的轉換和在單片機內的運算；高集成度16位模數轉換晶元ad7705在系統中的應用，我們完成了它與單片機的介面設計及程序編制任務；精確時鐘晶元ds1302在系統中的應用，在此，我們實現了用單片機的i o口與ds1302的連接和在軟體中對時序的模擬，該晶元的應用給整臺儀器提供了時間基準，方便了儀器的使用；另外，針對研製任務的要求，還給系統加上了一路4 20ma模擬信號電流環的輸出電路來提供系統監測，該部分的實現是通過採用ad421晶元來完成的，本設計中完成了ad421與單片機的spi介面任務，協調了它與ad7705晶元和單片機共同構成的spi總線系統的關系，並完成了程序設計；與上位機的通信介面設計，該部分通過兩種方法實現： rs232通信方式和rs485通信方式；系統設計方面還包括報警電路設計、操作鍵盤設計、電源監控電路設計、電壓基準電路的設計。 -
Paper regards the vegetables current situation as background, analyze our country and foreign vegetables marketing disparity of channel, combine the survey of existing vegetables marketing channels in wuhan, direct three main vegetables marketing channels : wholesale market, farm market, supermarket. finding the existing problem and the relation and conflict each other. have put forward the corresponding improvement measure : wholesale market as the tap of the vegetables marketing channel, in the face of sell smooth, fund shortage, facility simple and crude, communication way outmoded market that exist at present, must adopt with governed by law field, increase input, and scientific appraisal make their functions perfect further ; farm market as the vegetables marketing channel system of produce of foundation, should fully realize meaning in which the market have, dispel the restriction factor of market development, heighten the level, which manage and improve ; supermarket as the new member, should see clearly the existing problem in the hardware and software terms, utilize government microscopically policy support, strengthen self - building, make the new developing achievement state of competence develop better
論文共五章：第一章是論文研究的目的和意義以及營銷渠道的主要理論和國內外的研究動態；第二章是國內外蔬菜營銷渠道分析及比較，以我國蔬菜產銷現狀為背景，分析了我國與國外蔬菜營銷渠道的差距；第三章是對武漢市蔬菜營銷渠道的現狀分析，主要是針對蔬菜批發市場、農貿市場、超市這三個主要渠道成員存在的問題及其相互之間的關系與沖突，提出了相應的改進措施；作為蔬菜營銷渠道龍頭的批發市場，面對當前存在的市場萎縮、銷售不暢、資金短缺、設施簡陋、方式陳舊等問題，必須採取以法治場、加大投入、科學論證的方法使其功能進一步完善；作為蔬菜營銷渠道體系基礎的農貿市場，應充分認識市場存在的意義，消除市場發展的制約因素，提高管理和革新的水平；作為蔬菜營銷渠道新成員的超市，要認清經營中硬體和軟體兩方面存在的問題，利用政府宏觀政策支持，加強自身建設，使這一代表先進生產力水平的新興的業態更好地發展。 -
Abstract : based on the results of hydraulic model test and remote - control ship model, the unsteady flow characteristics in the downstream approach channel and the reaches from three gorges project to gezhouba project and navigation conditions in these reaches during the tgp flood - discharge are analyzed. the measures of raising navigation discharge level and improving navigation conditions are given
文摘:根據水工模型試驗成果，分析了三峽工程泄洪時壩下游引航道和兩壩間河段（三峽至葛洲壩）的非恆定波流運動特性，結合遙控自航船模試驗對兩壩間的通航水流條件進行了分析評價，並提出了提高通航流量標準、改善通航條件的相應措施。 -
Impact of the three gorges project on the water level and navigation channel in the near - dam reach downstream the gezhouba project
三峽工程對葛洲壩樞紐下游近壩段水位與航道影響研究 -
On this base, it has put forward the competitive strategy of optimizeing internal competitive resource, intensifying the administrating level of channel, adequately utilizeing upstanding chances of direct domination and western exploitation, actively pressing the marketing course of chongqing broadcast, constructing strong media in district. it has also made the strategic measures of three step ' s walking of chongqing broadcast. the first stage is the internal organization
在此分析基礎上提出了優化內部競爭資源，強化頻道經營水平，充分利用重慶直轄和西部大開發的良好機遇，積極推進重慶廣播的市場化進程，建立區域性優勢媒體的競爭戰略，並進一步做出了重慶廣播三步走的戰略實施規劃，第一階段為內部建設階段，第二階段為外部擴張階段，第三階段為媒體革新階段。 -
Basing on the above analysis and research and combining the practice of the hunan telecom corporation, this paper analyzes the ways to build a whole - range and multi - type telecom marketing - channel system in detail from three aspects : building the self - marketing channels system, the commission - marketing channels system and the combined - marketing channels system, including the telecom traditional business lobby, the telecom supermarket, the group and key customers sales service, the sales and maintenance unity, the rural branch office agency, franchise marketing, comprehensive customer service platform, the telecom transcribes strategic alliance, etc. meanwhile, in order to improve the sales ability and service level of the marketing channels, this paper holds that the telecom enterprises should strengthen the marketing staff construction, build a sound inspiration system and enhance the scientific management of the marketing channels, thus providing a strong support and guarantee for the marketing - channel construction and improving the loyalty of telecom enterprises " marketing channels
在上述分析和研究的基礎上，結合湖南省電信公司的實踐，從建立自營渠道體系、代營渠道體系、聯營渠道體系三個大的方面，詳盡地分析了如何建立全覆蓋的、立體式的電信營銷渠道體系。包括大客戶營銷服務、營維合一、農村支局代辦、綜合客戶服務平臺、特許經營、虛擬經營、窗口營銷等。同時，就提高渠道的銷售能力和服務水平，提出應加強營銷隊伍建設，建立良好的激勵機制，加強對渠道的科學管理，從而為營銷渠道的建設提供強有力的支持和保障，提高電信企業營銷渠道的忠誠度。 -
From the analysis of the three typical forms of marketing channel in produce, which are marketing channel primarily by the transportation and sale of produce, marketing channel primarily by sold between the multi - layered brokers and marketing channel primarily by the transaction through interior relations. it comes to the problems we have in the produce marketing channel, such as the channel cost staying at a high level caused by the low technical level, the inflexible information circulation and outdated management, the main body on the up channel lacking competitive power caused by the universal low cultural quality, the ineffective information and blindly following others, the low technology content of the channel, the unreasonable investment structure
從對我國以農產品運銷為主的營銷渠道、以多層中間商銷售為主的營銷渠道和以交易型渠道內部關系為主的營銷渠道三種典型農產品營銷渠道的分析中，得出了我國農產品營銷渠道體系存在的問題，如:由於技術水平低下、流通信息不靈、管理方式陳舊導致渠道成本居高不下;由於文化素質普遍偏低、信息不靈、盲目跟風致使渠道上游主體缺乏競爭力;渠道技術含量較低;投資結構不合理。 -
Secondly, experiments were made to analyze the effect of the wheel damper, we used the system composed of a self - made pendulum, three acceleration sensors, a four - channel charge amplifier, a sound level meter, a signal collection analyzer and the dasp software
其次，對車輪阻尼器的降噪效果進行實驗分析。實驗採用激振單擺、加速度傳感器、電荷放大器、聲級計、智能信號採集處理分析儀以及dasp軟體組成的測試系統。
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