four-way type 中文意思是什麼
four-way type
解釋
四方向方式-
Type is side three - way liuzi, type is face three - way liuzi, type is four - way liuzi
該系列閥按型號可分為側三通溜子，正三通溜子，四通溜子。 -
Firstly the necessity of water erosion modeling on hillslopes is discussed. then existing water erosion models are generally divided into two types, formalization logic computational models and dialectical logic computational models according to the way of solving problems where the former can be further divided into four types - primarily empirically based, partially conceptually and partially empirically based, partially process based and partially empirically based, as well as theoretically based as weak points of the previous classification methods are concerned. finally characteristics of each type and their relationships are illust rated by examples
考慮到原有水蝕模型類型的不足，對當前水蝕模型按解題方法重新歸為形式邏輯計算模型及辯證邏輯計算模型兩類。其中，形式邏輯計算模型又分為經驗模型半概念半經驗模型半過程半經驗模型以及理論模型4類。結合實例闡述這幾類模型的主要特性及相關關系。 -
The paper includes five parts, begins with the concepts of internet, internet education and internet college, in this way make the research position clear ; then present a brief study of the internet college ' s rising and history, divides its development phases by the term of technology and culture, briefly introduce its current situation, such as its scope, organizer, education type, system and fee - charging, etc ; then according to internet college operation process, take four factors to present a detailed analysis, they are : education needs, education service, organization administration and quality guarantee ; thereafter is a prospect of internet college ' s future development ; the technical innovation of internet college, its culture development and the structure of a learning net in a digital time ; finally after a brief summary of the whole paper comes a presentation of the problems the internet college facing in its operation
文章共五個部分，首先由對網路、網路教育、網路大學的理解開始，明確論文的研究立場；接下來對網路大學的興起作簡單考察，從技術與文化的角度粗略劃分其發展階段，並簡要描述當前狀況，如規模、舉辦者、實施教育的類型、學制與收費等；然後再根據網路大學運行的過程，選擇其中從教育需求、教育服務、組織管理到質量保障四個要素加以分述；之後從網路大學技術的革新、網路大學文化的滋長與數字時代學習網路的構建三個方面對網路大學的發展略作展望；最後對前文作簡單結論的基礎上就網路大學的特性、教學及運行等方面問題進行一些討論。 -
Based on that, according to the power of corporations in the chain, the way in which the telecommunication operations and the sps cooperate, and the interdependent degree between them, the industry chain of the data service is divided into four types : the telecommunication operations dominates, the sps dominates, the third party dominates, and the type which profit distribution by the scale of the investment
在此基礎之上，本文通過對電信增值業務產業鏈不同發展階段中鏈上企業的力量對比、電信運營商與sp商的合作形式及相互依賴程度，將電信增值業務產業鏈模式分為四類:運營商主導的產業鏈模式、 sp商主導的產業鏈模式、第三方主導的產業鏈模式及按投資比例分成的產業鏈模式。 -
The technical and economic evaluation of thin - type spunbond nonwoven project has mainly finished the following research work : ( 1 ) utilize the theory and method of < marketing > for market investigation, research and forecast, analyze the developing trend and market requirement of the nonwocen abroad and at home, conduct quantitative forecast for raw materials and product price, and explain that during the essential period when liaoyang petrochemical company regulates the structure of industries and product and remodels the main business items, selecting to build up the production device for thin - type spunbond nonwoven is suitable. ( 2 ) introduce techniques of different companies to form different schemes. after analyzing the features of various schemes in the thesis, through building up the target system of four levels and utilize technical comprehensive evaluating way to conduct technical evaluation of four schemes for the thin - type spunbond nonwoven project and get the prior sequence from schemes d, b, a to c. ( 3 ) different technical schemes have various cash circulation amounts, economic evaluation is first based on evaluating and confirming feasibility of each scheme by the single scheme finance, select and use the method of multiple schemes comparison selecting - inutual repelling type multiple schemes optimization, select introducing the scheme of d company technique as the optimum, then conduct undetermined analysis to further test and verify feasibility of schemes
闡明了遼化公司在調整產業結構和產品結構、重塑主營業務的關鍵時期選擇建設8000噸年薄型紡粘非織造布生產裝置是適宜的； （ 2 ）引進不同公司的技術形成了不同的方案，論文在分析了各方案的特點后，通過建立四個層次的指標體系，運用技術綜合評價的方法，對薄型紡粘非織造布項目的四個方案進行技術評價，確定了丁方案、乙方案、甲方案到丙方案的優先順序； （ 3 ）不同的技術方案有不同的現金流量，經濟評價首先在單方案財務評價確認各方案可行的基礎上，選用多方案比選? ?互斥型多方案選優的方法，選擇引進丁公司技術的方案最優，而後，又進行了不確定性分析，進一步驗證方案的可行性。 -
Outdoor type can select one - way to four - way output, indoor type can select one - way to two - way output
野外型可選14路輸出，室內型可選12路輸出 -
Nanfang bearing co., ltd located in changzhou city jiangsu province, established on the basis of nanfang needle bearing factory, possessing two plants and four sales agencies in shanghai chongqing guangzhou zhejiang, is a specialized enterprise in producing various types of needle roller bearing and three type one way clutches
南方軸承有限公司座落在江蘇武進市高新技術開發區，在南方滾針軸承廠的基礎上組建而成，在牛塘鎮及上述開發區設有2家生產工廠，上海、重慶、江門、溫嶺設有辦事處，專業生產各類滾針軸承及超越離合器。 -
Type, dimensions and specifications of equal - dimameter three - way and equal - diameter four - way pn 250 mpa valves
Pn250mpa等徑三通等徑四通型式尺寸和技術條件
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