three field system 中文意思是什麼

three field system 解釋
三區[輪作]制三圃農作制
  • three : n. 1. 三個人[東西]。2. 三歲，三時。3. 【板球】3字型。
  • field : n 菲爾德〈姓氏〉。n 1 原野，曠野；（海、空、冰雪等的）茫茫一片。2 田地，牧場；割草場；〈pl 〉〈集...
  • system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
  1. In chapter one, we ' ve briefly introduced field bus, the advanced industrial control network. contrapose to the problems exsist in field bus, we ' ve discussed the application and status of industrial ethernet in chapter two. combined with the development of ethernet, in chapter three, we ' ve brought forward a kind of ethernet structure and a design project for ethernet controller, the key equipment in ethernet. we ' ve also analysed how to resolve the uncertainty of the traditional ethernet which affected its industrial application. in chapter four we ' ve talked about how to realize network management system based on snmp and web technology, which includes its structure, function and programming model. we ' ve discussed the technology of ethernet integrating with other network in chapter five, which consisted of both integrating with information network and control network. in the last chapter we ' ve analyzed the application project of ethernet in control field through practical case

    第三章結合以太網技術的發展提出了一種以太控制網路的體系結構和其中的關鍵設備? ?嵌入式以太網控制器的設計方案，還對傳統以太網中影響其在工業控制上應用的「非確定性」問題的解決辦法作了分析。第四章討論了基於snmp協議和web技術的網路管理系統的實現，包括結構、功能和編程模型。第五章討論了工業以太網和其他網路的集成技術，分為與信息網路和控制網路集成兩方面，最後一章通過實例來分析以太網在控制領域的應用方案。
  2. In this paper we have done two work, one is we, in the dressed states representation, reveal that the constructive interference of atomic coherence on absorption leads to electromagnetically induced absorption, which is in sharp contrast to the case in which destructive interference of atomic coherence gives rise to electromagnetically induced transparency and the other is we reveal that coupling field linewidth inhibits electromagnetically induced absorption, by employing a four - level system in which three transitions are in n configuration and the middle transition serves as a probe transition

    本文主要做了兩方面的工作：一是在修飾態表象中揭示修飾態原子相干對吸收的相長干涉產生電磁誘導吸收，這與修飾態原子相干對吸收的相消干涉導致電磁誘導透明的情形形成鮮明的對照。二是在裸態中，引入耦合場的線寬，從而發現耦合場的線寬抑制電磁誘導吸收。首先研究電磁誘導吸收。
  3. Through studying it is shown that in chagan sag, the geothermal gradients in the center are higher than those around the sag margin and major factors influencing the characteristics of temperature field distribution are the property of geotectogenesis and the differences in tectonic portion, lithology and underground water behaviour ; there are three types of mudstone compaction, i. e. normal compaction, undercompacition and overcomepaction ; there are two pressure systems in sandstone reservoirs, i. e. normal pressure and negative pressure systems and the strata ' s being uplifted and denuded is the key factor leading to the formation of the negative pressure system in reservoir ; and the distinctive temperature - pressure field characteristics in the sag are possessed of important petroleum geological significance in hydrocarbon source maturity, hydrocarbon generation, widening on oil and gas exploration domain and selecting exploration targets, etc

    研究表明，查干凹陷中心的地溫梯度高於凹陷邊緣，大地構造性質及所處構造部位、巖性與地下水活動的差異是影響凹陷地溫場分佈特徵的主要因素；泥巖壓實存在正常壓實、欠壓實和過壓實三種類型，砂巖儲層段壓力類型可分為正常和負壓兩個系統，地層抬升剝蝕是導致儲層負壓系統形成的主導因素；凹陷獨特的溫壓場特徵對烴源巖成熟、油氣生成、油氣勘探領域的擴大及勘探方向的選擇等具有重要的油氣地質意義。
  4. In this article, the fundamental principle and current research of optical data storage including cd and dvd, three - dimensional optical data storage and near - field high - density optical data storage are summarized. a two - dimensional finite difference time domain program for analysis of solid immersion lens system is compiled

    本論文概述了已產業化的以cd和dvd為代表的光盤存儲技術和在開發中的高密度光存儲技術（主要包括三維光數據存儲技術及近場光學超高密度光存儲技術）的原理及研究現狀。
  5. Logically, this paper includes three parts. the first is the introductive chapter including researching background, connotation and definition of government economic supervision, researching area and view angle, approaches adopted and key concepts and the fundamental framework. the second, chapter 1 to 4, is the theoretical analyzing part, in which discussions are made on problems like origination of supervision theory of government, property supervision system and economic problems in this field

    本文在邏輯結構上，按照從理論到實踐的順序展開分析，具體分為三大部分，導論部分：選題背景、意義，政府經濟監督內涵界定，研究范圍和視角，方法與關鍵概念以及文章基本框架；理論分析部分，包括第一、二、三、四章，分析了政府經濟監督理論的產生，政府經濟的代理問題，產權監督機制和監督的經濟學等問題；實證分析部分包括第五、六、七章，通過對西方國家國企的比較和我國政府經濟的監督問題分析，提出了政府經濟的監督制度安排。
  6. Based on the investigation and research, the paper gives a testing method, which measures the taking off and landing distance of airplanes with the laser locating system for airplanes trace. and by way of the field measuring on plateau airports, we have got the integrated modifying coefficients of three kinds of airplanestaking off and landing running distance such as h6. all of these provide scientific basis for the runway length design of the plateau airport

    在調研論證的基礎上，提出了利用《飛機起落航跡激光定位系統》測定飛機起飛著陸滑跑距離的測試方法，並通過高原機場實地測試，得出了三種飛機在高原機場上起飛著陸滑跑距離的綜合修正系數值，為高原機場跑道長度設計提供了可靠的理論依據。
  7. It was the first trial to employ the newly equipped migration data acquisition and analysis system for the scanning entomological radar and, a twin light - trap developed in china for, systematic long - term observations of migration of the beet armyworm spodoptera exigua, beet webworm loxostege sticticalis and cotton bollworm helicoverpa armigera in northern china the study provided direct evidence for the migration of 5 ". exigua in china, many parameters of migratory behaviour of the three species of insects, a better understanding of the relationship between migratory behaviour and wind or temperature field. the results enriched the theory of migration and provided new scientific knowledge for pest management in china

    本研究初步闡明了我國華北地區空中昆蟲群落結構，首次使用我國自行研製的掃描昆蟲雷達的數字化數據採集及分析系統，及價廉、高效的姊妹燈誘蟲法對華北地區甜菜夜蛾spodopteraexigua 、草地螟loxostegesticticalis和棉鈴蟲helicoverpaarmigera的遷飛進行了長期系統地觀測，得到了甜菜夜蛾在我國北方遷飛的直接證據，三種害蟲遷飛行為的若干參數，認識了昆蟲遷飛行為與風溫場的關系，豐富了昆蟲遷飛理論，為我國害蟲的治理提供了科學依據。
  8. Quantum interference occurs in a three - level a system with near - degenerate dipole allowed transitions, which are coupled to the same linearly polarized incoherent field

    如，當a型的兩個躍遷與一個線性極化的非相干場進行耦合時，非相干泵浦產生量子干涉。
  9. According to the gray system theory ， 15 signs including geology, geophysics and geochemistry closed to mineralzation have been correlatively scanned in the baiyin ore - field and its nearby area, and three correlativity anomalies have been acquired in heishishan, baiyinchang and lijiadagou areas

    根據灰色關聯原理，對白銀礦田及小外圍與成礦關系密切的15個地質、物探、化探綜合找礦標志進行了關聯度掃描，並在黑石山、白銀廠和李家大溝地區獲得了關聯度異常。
  10. At the beginning of the establishment of this company, because of the difference of the original three companies existing in the field of enterprises culture background, staff post functions, distribution system, inspiring style, promotion education and training, there is a urgency to set up a fair, reasonable and efficient administration management system to inspire the staff working activities, meanwhile to bring the staffs of the three companies to work together harmonically to make their devotions to the rapid development of the company

    新公司成立伊始，因原有三家公司的企業文化背景不同，員工在崗位職能、分配製度、激勵方式及職位提升、教育培訓等人事制度上有很大差異。此時，迫切需要新公司能制定出一套公正、合理、有效的行政管理制度，使之即能充分調動員工工作積極性，又能使三家企業的員工很快融合到一起，共同為企業的快速發展貢獻力量。
  11. This paper aims at the characteristics of thermal response of lpg vesse1 under high temperatue, conjoining the project of " study on transportation safety early - wdring system of lpg dangerous goods " supported by transportation departinen of china and the project of " mechanism study and numerical simulation of the explosion of lpg vessel " supported by science foundation of hubei province. the interdisciplinary research has been done among temperature field distribution of lpg vessel under flame surroundings, intensity calculation, crack propagation predication and mechanism of explosive accident, etc. three parts are analyzed and discussed

    本文針對高溫環境下液化氣壓力容器的熱響應特性問題，結合交通部重點科技項目「液化氣體類危險品運輸安全預警系統的研究」和湖北省自然科學基金項目「液化氣容器爆炸機理研究及數值模擬」 ，對在火焰包圍下的液化氣壓力容器的溫度場分佈、強度計算、裂紋擴展預測以及爆炸事故機理等方面開展了多學科的交叉研究。
  12. My research paper can be divided into five parts : i. practical mathematical models have been derived and equations are also derived ( includes field excitation system, governing system ), which are used in generator three phases short circuit and by adding large loading. ii. simulation of the generator ' s shunt - wound run

    發電機組實用數學模型的推導（包括勵磁系統和調速系統） ，並由此推出了用於發電機三相突然短路和突加異步電機大負載模擬的差分方程；並進行了突卸負載、突加負載時調速系統的模擬過程； 2
  13. The whole system is divided into three levels, namely field level, workshop level, and management level

    整個系統分三級：現場級、車間級、管理級。
  14. The super resolution effect of sb layer super resolution structure is also investigated with near - field scanning optical microscope. in addition, a rigorous three - dimensional ( 3d ) optical electromagnetic finite - difference time - domain ( fdtd ) model for analysis of a sil system is detailed. in order to accurately analyse sil model, a new method of setting a focused gaussian beam source in fdtd grids is presented

    此外，本文還建立了對sil系統光傳輸特性進行模擬的時域有限差分程序，提出一種在fdtd模擬的離散空間設置會聚高斯光源的新方法，並模擬了會聚高斯光束在sil系統中的傳輸，研究了sil在不同離焦情況下底面出射光場幅度及光束半徑的變化規律，為sil存儲系統的優化設計提供了理論依據。
  15. The three of them are tightly connected. in a long term, the viewpoints of public management field talk about government framework reform and system reform so much, but few of them talk about government management system and the function of it, local governments focus on weighing achievements of government management, ignoring weighing the result of achievements of government management. obviously, the core of achievements of government management ’ s problem is the factors which have effects on achievements of government management and the result caused by government manages society

    長期以來，國內公共管理領域的著作和觀點中，談政府機構改革、政府體制改革等方面的很多，談政府管理制度及其運行分析方面的問題較少，談政府績效管理的制度、戰略和方法的較多，談政府定位及其職能的結構及其運行方面的問題較少，各地政府在探索提高政府管理績效的路徑上往往只關注政府公共管理行為的過程（政府績效管理衡量） ，忽視政府管理績效的結果衡量，在衡量體系的設計上突出經濟指標，實踐性與實際存在的問題嚴重脫節。
  16. Motion control is a comprehensive subject. modern ac drive is a important embranchment in the field of motion control. however, it is difficult to rea1ize high - performance ac drive systems because induction motors are a kind of strongly - coupled nonlinear system with many variables and the torque is not easy to control. with vector control technology decoupling and torque control of ac motor are solved. the basic idea of vector control is that three - phase system is equiva1ent to two - phase system by coordinate transformation and it realizes the decoupling between field current and torque current of the stator in order to control the flux and current respectively, thus induction motor can be considered dc motor and high performance is achieved easily. with the progress of electric and electronic technology and the development of computer, high - integrated special modules and high - precision digital signal processor ( dsp ) are applied to ac drive so that vector control has been developed rapidly

    但是高性能的交流調速系統實現很困難，這是因為交流電機是多變量、強耦合的非線性系統，不易實現高性能轉矩控制。矢量控制技術則解決了交流電機解耦與轉矩控制問題，其基本思路? ?應用坐標變換將三相等效為二相，實現定子勵磁電流分量與轉矩電流分量之間的解耦，達到對交流電機磁鏈與電流分別控制的目的，交流電機等效為直流電機實現高性能調速。隨著電力電子技術的進步，計算機技術飛躍發展，高度集成的專用模塊和高精度的數字信號處理器應用於交流傳動系統中，促進矢量控制迅猛發展，日趨成熟。
  17. Portable long - range infrared surveillance system thermovision 2000 is a state - of - the - art long - range platform mounted thermal imaging system, offering unmatched performance with its long - wave gen - iii qwip sensor and internal three field of view optical system

    Thermovision 2000是尖端科技的長距離安裝有紅外熱像系統的監視平臺，提供無與倫比的第三代長波qwip quantum well infrared photondetector量子阱紅外光電探測器的性能和內置三種不同光學視場角25
  18. This paper mainly focuses on the following three field : system structure, system hw / sw ( hardware / software ) partition. synthesis and verification. and presents a hw / sw co - design method based on ip ( intellectual property ) core. we use this method to design asip, and verify this virtual machine using instruction codes, ac - 3 codes and ts ( transport stream ) flow

    本文從晶元系統的整體入手，重點從系統的結構、軟硬體分割以及晶元系統的設計驗證三個方面對該晶元系統的設計做了深入的研究，提出了一種基於ip核的軟硬體協同設計方法，運用該方法對asip進行設計，並採用虛擬機的模型，採用指令集程序、 ac - 3解碼程序、 ts流程序進行模擬驗證。
  19. Secondly, they devised the narrow - strip, three - field farming system which continued to the 18th century

    其次，他們設計的窄條三圃田農耕制延用至18世紀。
  20. Thirdly, the thesis put forward the conceptions of respondence, environment field, adjustment field and characteristic of respondence, three inner links of respondence, the respondence shell hypothesis of individual respondence, four - dimension characters of environment field functions, doubles curve hypothesis of really creative ability changing, function field hypothesis of rencai resources and three - dimensional system of rencai resources functions

    3研究提出了：響應、環境場、調控場及響應特性等概念， 「響應」的三個內在環節，個體響應的「響應殼」假設，環境場作用的四維特徵，現實創造能力時變的「雙s曲線」假設，人才資源的「功能域」假設以及人才資源功能的三維體系。
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