four-point system 中文意思是什麼
four-point system
解釋
四分制-
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 -
Section four, on the basis of discussion of the three sections above, point out the problems in the running accounting system
第四節，在前三節論述的基礎上，指出我國現行會計制度中存在的問題和不足。 -
This paper is divided into four parts : the first part expounds the fundamental theories of social security and social security system. in the second part, it analyses the process, current situation and social signifinance and then point out the necessity to reform our social security system. the third part lets us know the social security reform experience of european courties, points out the overall thoughts, and the specific measures of three core insurance items and puts forward to levy social security tax that is the best choice to perfect the way to collect our social insurance funds
第一部分介紹了社會保障和社會保障制度的基本理論。第二部分通過分析我國社會保障制度的歷史、現狀及其社會經濟意義，提出改革我國社會保障制度的必要性。第三部分介紹歐盟國家社會保障制度改革的基本經驗，提出我國社會保障制度改革的總體思路，以及三大核心保險項目具體的改革措施，提出開征社會保障稅是完善我國社會保障籌資方式的最佳選擇。 -
Fourthly, it is helpful for the information share between the departments, to prevent avoiding tax and the occurrence of the repetitious taxation. the tax source control used in internet mainly includes four aspects : the first one is the construction of the first to the third step of golden tax project, the second one is the construction of the government portals of tax authority and the internal automation of official business, the third one is the conversion from general taxpayer point for a little net on report to the internet report, the fourth one is chinese tax revenue collection and management system v2. 0 s operation on line
網際網路環境下稅源管理的新思路包括轉變傳統稅源管理理念，構建適應網路經濟發展的新型稅務人才隊伍，構建稅務機關與企業的共享平臺和保障信息安全;加強企業網上交易后臺監控，加強與公安、海關、工商、銀行等相關部門的信息共享，加強相關稅收法規的修訂，加強執法檢查力度，加強對企業的納稅評估，加強世界各國間的反避稅合作。 -
The " four point system " project was launched in 1991, and until 2002, has made investment of 798 million yuan. the objective of the project is to strengthen the pastoral risk management capacity through building of fence, shelter, living house and oats planting and improving the overall livestock production condition in qingnan area. the herders should be the key stakeholders in the pastoral risk management project
青南牧區「四配套」建設項目從1991年正式實施到2002年，總投資達7 . 98億元，是青南牧區防災體系建立的綜合技術推廣項目，主要以解決牲畜「溫飽」問題為主攻方向，走發展草業的路子，重點建設一批牧戶定居點、草原圍欄、人工種草、牲畜棚圈相配套的防災、減災基地，逐步實現該地區草地畜牧業的穩定發展。 -
In this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes
本文將水質預測及水污染控制措施有機地結合，選取水環境容量和污染指數作為水污染控制的參數.這樣，一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進，因為其採用四點隱格式對水質進行預測，推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值，從而制定相應的水污染控制措施.為整體考慮各種污染物的情況，建議採用河流的污染指數進而推求綜合污染指數.總之，本研究為水質保護提供了科學的計算方法，該法對水污染控制及污水對河道水質的影響是實用有效的 -
Abstract : in this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes
文摘:本文將水質預測及水污染控制措施有機地結合，選取水環境容量和污染指數作為水污染控制的參數.這樣，一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進，因為其採用四點隱格式對水質進行預測，推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值，從而制定相應的水污染控制措施.為整體考慮各種污染物的情況，建議採用河流的污染指數進而推求綜合污染指數.總之，本研究為水質保護提供了科學的計算方法，該法對水污染控制及污水對河道水質的影響是實用有效的 -
With the introduction of the liquid chemical loading and discharging system and how operating in zhenhai district, combining the recent statistics date of the port, the chapter analyzes the berth throughout, use - rate of berth, need of the storage area and point out the main problem now existing. chapter three combining the new project of the district analyzes the handling system layout entirely, meanwhile it builds four series of liquid chemical transfer - lines projects which fit the need of the future
第二章主要對化工區的發展現狀進行了分析，在簡單的介紹了散裝液體化工品的裝卸工藝和化工區液化裝卸工藝的布局形式和運作方式的基礎上，結合港區現有的各類統計資料，通過對泊位通過能力，泊位利用率和區域貨運量等資料的分析研究，指出了目前化工區液化工藝布局中存在的主要問題，並提出了解決目前存在問題的基本思路。 -
It includes four criterions of locating fault point ? “ transient zero sequence current amplitude law ”, “ stable base wave zero sequence current phase law ”, “ stable seventh harmonic zero sequence current phase law ” and “ s injection law ”. pointing out how the law locate the fault point to minimal fault section by applying these criterions gradually. the law will not only make up the blemishes existing in current methods for single - phase fault location in small current grounding system, but also locate the fault point to minimal fault isolating unit on fault line
該方法通過將所包含的四個定位判據- 「暫態零序電流幅值法」 、 「穩態基波零序電流方向法」 、 「穩態7次諧波零序電流方向法」和「 s信號注入法」 -進行有選擇地遞進使用，不僅有效彌補了目前已有小電流接地系統單相接地故障選線的缺陷，更將故障定位在故障線路最小故障區段。 -
In this article, we use idea of turning dispersion into convergence and put all the well ' s points into the same unit net to think about it. and answer three questions of the distribution of well drilling by the way of searching for groups of points. fincite - step - searching underthe condition of translationg fcoordinate system or revolving coordinate system. to first question. we find two algo - rithms and make use of data that is given to find the solution. we seek coorlinate of net point is co. 361, 0. 461 ) and mostly four old well ' s points are utilized at the same time by first algorithim, which are no. 2, no, 4, no. 5, no. 10. by second algorithm, we rechon the coordinate of net point is co. 390, 0. 505 ). and that mostly four old well ' s points are utilizld which are no. 2, no. 4, no. 10. to second question, we turn it into the first question by angling awt the center of net point. we seek that mostly six old well ' s points are utilized at the same time, which are no. 1, no. 6, no. 7, no. 8, no. 9, no. 11, when net is angled 0. 78 radian. and net point is translated to ( 0. 75, 0. 076 ) ( at nwe coordinate system ). to third question, wefind a necessary and sufficient condition and affer algorithms, at last, we analyse algorithms
運用化分散為集中的思想，把所有的井點都放在同一個單位網格內考慮.在坐標可平移、旋轉的條件下，利用尋找點群、有限步驟搜索法，對鉆井布局的三個問題進行了解答.對問題一，給出了兩個不同演算法.並對題目提供的數據進行了求解，演算法1得到的結點為（ 0 . 361 ， 0 . 461 ） ，最多有4個舊井點被同時利用，它們是第2 、 4 、 5 、 10個井點;演算法2得到的結點為（ 0 . 390 ， 0 . 505 ） ，最多有4個井點被利用，它們是第2 、 4 、 5 、 10個井點.對問題二，以結點為中心旋轉一定的角度后，歸結為問題一進行求解，求解結果為當網格傾斜角為0 . 78弧度（相對原坐標系） ，結點平移到（ 0 . 75 ， 0 . 076 ）點（在新坐標系下） ，可被同時利用的最多舊井點為6個，它們是第1 、 6 、 7 、 8 、 9 、 11個井點，對問題三，我們給出了充要條件，並給出了演算法.最後還分析了演算法的優劣性 -
Presented four methods of laser collimation, realized 3 of them with the software of zemax, and meted the requirement of the system design ; 3. realized the laser beam expanding from point - laser to line - laser wide enough to cover the flange trackside ; 4. after image grabbing and processing, picked up the profile of the train wheel
作者獨立完成的工作包括： 1 、提出了曲面測量的光學系統的整體方案； 2 、提出了四種激光擴束的方案，用光學設計軟體zemax完成了其中三種的設計；經過像差分析和追跡，達到了準直擴束的要求； 3 、點光源到線光源的單方向擴展，達到了覆蓋輪緣踏面的要求； 4 、通過實驗採集圖像和圖像處理，提取出被測輪緣的輪廓。 -
The authour investigate the dosing conditions and effect of the pac to the huanghe water - source, which includes the following four parts : the selection of the pac ; the confirmation of dosing scheme and effect of the pac ; the research of application of potassium permanganate in combination with pac ; the research of the pac ' s modification and the modified effectiveness. the experiment is mainly carried out on the pilot system in the jieyuan water plan of tianjin. the results of the reseach include the following : l ) the pac from zunhua plant is selected as the better carbon for the source water of tianjin through the experiment ; 2 ) through the pilot experiment we conclude that the pac ' s best adding point is the mixing tank and the better dose is 10mg / l, on which the codmn of filtered water can be decreased to 40 % and the effluent have no problem of odour and color ; 3the adsorbing experiment show that pac mainly adsorb the organic matters which molecular wt., distribution between 500 and 3000, and can adsorb organic matters whose molecular wt., distribution are bigger than 6000 if the dose of it is adequent ; 4 ) pac together with potassium permanganate can remove the organic matter more effectively than each of them alone, and reduce the rising trend of turbidity of the flotation ' s effluent due to adding pac ; 5 ) the thesis made a research on the surface properties and the adsorbing capability of the modified carbon by oxidizer : the modified carbon with 20 % h2o2 can remove more organic pollutants than the untreated one by 12 % when we add a higher dose of coagulant ; 6 ) the modification of reduction and loading metal ions are also sttldied, and drow the following conclusions : the modified carbon with 5 % ammonia can enhance the organic matter ' s removal effectiveness by 10 % to the tianjin source water than the untreated one, and the modified one with loading metal ion remove the organic matters from the tianjin source water better ( 8 % ) than the untreated one due to the strong affinity betwween the humic acid and copper ion
本文的實驗主要是在天津芥園水廠的中試系統上完成的，論文的成果和結論主要包括： 1 ）通過靜態實驗選定河北遵化活性炭廠生產的煤質炭為適合天津原水的炭種； 2 ）中試實驗確定粉末活性炭的較佳投加點為混合池投加，較佳投加量為10mg l ，此時可使濾后水的cod _ （ mn ）降低40 ，且可較好地控制濾后水的嗅味和色度； 3 ）初步確定粉末活性炭對原水中有機物的吸附主要集中在分子量在500 - 3000范圍內，投量增大時可吸附部分分子量大於6000的有機物4 ）中試實驗表明：粉末活性炭與高錳酸鉀聯用可取得較兩者單獨應用時對有機物更好的去除效果，且對因投加粉末活性炭而造成的氣浮出水濁度升高有一定的改善作用； 5 ）研究並初步確定氧化改性對粉末活性炭表面性質和有機物的去除效果的影響：粉末活性炭的氧化改性會使其表面的酸性官能團大量增強，表面極性增加；經20的過氧化氫改性的活性炭在增大混凝劑投加量（ fecl _ 3投量為15mg l ）時對有機物的總體去除效果較原活性炭提高12 ， 1次氯酸鈉改性活性炭對有機物的去除效果較原活性炭提高6 ； 6 ）研究並初步確定還原改性、負載金屬離子對原水中有機物的去除效果的影響：經5氨水改性的活性炭可提高天津源水中有機物的去除率達到10 ；負載銅離子后的活性炭可提高對腐殖酸類物質的去除能力，一般可提高8左右。 -
Chapter four : firstly, creatively puts forward the double circulation message drive programming idea, and detailedly expounds the basic theory of the double circulation message drive ; afterwards, works out the software of the electromagnetic flowmeter system according to it ; finally, works out the multi - byte decimal fixed point numbers multiplication & division subprogram, through studying the current arithmetic
第四章首先創造性地提出了雙循環消息驅動程序設計思想，並詳細闡述了雙循環消息驅動的基本原理；然後根據該思想設計出電磁流量計系統軟體；最後通過研究原有演算法設計出演算法改進后的多位元組十進制定點數乘除法程序模塊。 -
In this paper, a four - point attraction magnetic suspension system is designed and analyzed, the principle of each part of the magnetic suspension system is described in detail
本文對四點吸引式磁懸浮實驗系統進行了設計和分析，對磁懸浮系統的各個組成部分及其原理進行了詳細的說明。 -
The 1422253 developing thinking for the economic development in gannan prefecture is : centre on one point ( speeding up the pace of constructing a well - to - do society ), implement four great strategies ( developing gannan prefecture through the development of industry, science and technology, and the leading role played by opening - up and being pushed by projects ), realize the leaping development of two great industries ? hydropower and tourism, fast development of two great industries ? the exploitation of mineral resources and processing of agricultural and animal products, and the steady development of two great industries ? industralization of agriculture and animal husbandry and exploitation of mountain wild treasure, well carry out the construction of infrastructure, towns, ecological environment, social security system, privately - owned economic development, and successfully build gannan prefecture into three great bases in gansu province for animal products processing, energy industry and special tourism
全州經濟工作「 1422253 」發展思路:這就是圍繞一個中心（加快小康社會建設進程） ，實施四大戰略（工業強州、科教興州、開放帶動、項目拉動） ，實現兩大產業（水電、旅遊）的跨越式發展、兩大產業（礦產開發和農畜產品加工）的快速發展，兩大產業（農牧業產業化和藏藥及山野珍品開發）的穩步發展，搞好五大建設（基礎設施、城市 、生態環境、社會保障體系和非公有制經濟發展） ，建成三大基地（把甘南建成甘肅重要的畜產品生產加工基地、能源工業基地、特色旅遊基地） 。 -
To point out four essential factors in the strategy which usually are considered to limit enterprise ' s strategic choice space in the beginning, afterwards the article illustrates the enterprise value creation system, namely value shift, value discovery, value creation, value transmission, value control, value creation cornerstone - enterprise ' s resources and structure, capability
戰略選擇中指出戰略形成通常所考慮的四要素限制了企業的戰略選擇空間，思考的轉換可以拓寬企業的選擇范圍。隨后是對企業價值創造系統的論述，即價值轉移、價值發現、價值創造、價值傳遞、價值控制、價值創造的基石? ?企業的資源及結構、能力。 -
Poit - pay sytem is based on the job ' s responsibility, skill, condition and difficulty. it is chosen for the design of the company ' s compensation system because of the unique situation of the company and the industry in which the company lies. the competition of food industry is very flerce. employees " income must be associated with the interests levil of the company if the company wants to survive in the industry. according to the situation of the company, the point - pay system consists four partsyob point, skill point, diploma point and seniority. and the pay is divided into two parts : one is fixed, the other is changeable. the changeable part varies with the company ' s interests levil
選擇崗位薪點工資制來進行薪酬設計是由紅太陽食品有限公司所處行業特點決定的。食品行業的競爭程度十分激烈，要想使企業立於不敗並保持活力，就必須使員工的收入直接與企業的盈利水平掛鉤，員工的利益來自於公司的收益。根據該公司的特點，崗位薪點工資制的工資單元主要由四部分構成：崗位薪點工資、技能薪點工資、工齡薪點工資、學歷薪點工資。 -
Based on the rate - equation theory of four - level system, the expressions of threshold pump power, output power and slope efficiency are given. the influence of space distribution of pump light ( the position of focusing point, dimension of pumping light and divergence angle ) to the output characteristics are also discussed. then, by investigating the effects of thermal effect of laser crystal on the size of laser cavity mode, we obtain the mode - matching principle of high power laser diode end - pumped solid - state lasers
其中，在泵浦光的空間分佈變量中我們分別考慮了泵浦光聚焦后的腰斑大小、聚焦腰斑在增益介質中的位置以及泵浦光在介質中發散角的影響；然後我們研究了在高泵浦功率下激光晶體因吸收泵浦光而產生的熱效應所導致的熱透鏡效應以及熱致衍射損耗，通過分析它們對振蕩激光腔模尺寸的影響，得到了高功率半導體激光二極體端面泵浦固體激光器模式匹配的要求，為高功率連續單頻nd ： yvo _ 4激光器的優化設計提供了理論依據。 -
The experimental instruments, apparatus and the means to prepare all the samples are introduced in the first section. in section 2, the experimental system including the oxidization system and diffusion system, are introduced therein. in section 3, the samples preparation including the pre - deposition, redistribution and re - oxidization, the samples of b doping, and the fabrication of ga - diffusion transistor, b - diffusion and the transistor formed by b diffusion following ga diffusion are detailed therein, and the as - prepared samples are analyzed by sims, srp and four point probe
首先介紹了制備各種樣品所用的實驗儀器、設備與方法；第二節中介紹了實驗系統，包括氧化系統、擴散系統，第三節介紹了樣品的制備，包括ga的預沉積、再分佈、二次氧化樣品，擴硼樣品，以及擴嫁晶體管、擴硼晶體管和擴鐮后再補充擴硼晶體管的制備流程；實驗所得樣品，藉助二次離子質譜（ sims ） 、擴展電阻（ srp ） 、四探針薄層電阻等先進的測試分析方法進行分析。 -
First, to describe the mode and process of event marketing with brand - linked point, contacts " point system and contacts system ; second, put forward the four characteristics and three types of event marketing. the two points are theoretical innovations in china ' s mainland the thesis is divided into eight chapters
總之，本文在理論上有兩個創新：一是用品牌鏈接點、接觸點系統和接觸系統這三大概念來表述事件營銷的操作模式和過程，二是提出了事件營銷的四大特點和三組類型。
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