field rate 中文意思是什麼

field rate 解釋
場率
  • 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...
  • rate : n 1 比率，率；速度，進度；程度；（鐘的快慢）差率。2 價格；行市，行情；估價，評價；費，費用，運費...
  1. They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem

    本研究以重慶市的南川金佛山（自然保護區） 、黔江武陵山（國家重點退耕還林示範縣，森林覆蓋率50以上）和北碚中梁山（遭人為破壞嚴重）典型巖溶區為對象，選擇了幾種重要的利用方式，包括林地、果園、耕地、棄耕地和灌草坡，採用野外巖溶生態調查和室內試驗測量分析相結合的方法，以不同土地利用方式巖溶土壤肥力為重點，對不同土地利用方式土壤肥力特徵進行量化分析，找出巖溶土壤肥力差異的主要方面及其根本原因，論文主要從土壤剖面物理退化指標（有效土層厚度、有機質層厚度、質地、團聚體、水分含量等） ，化學肥力退化指標（有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等） ，樣地土壤微生物指標（細菌、真菌、放線菌數量及總量）以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究，為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
  2. A one - dimensional oceanic mixed layer model with the m - y level - 2. 5 turbulence closure schemes is employed. the rate of energy loss by breaking waves is estimated by parameterization and incorporated into the model as a source of turbulence kinetic energy ( tke ) by modifying the existing surface boundary condition of tke equation. the velocity field and turbulence energy budget are calculated under different forcing conditions ( the results given below are for a wind speed of 20 m / s. )

    採用一維2 . 5階湍封閉混合層模式，根據參數化方法對波浪破碎導致的能量耗散率進行了估計，通過改變湍動能方程的上邊界條件引入波浪破碎對湍動能生成的影響，計算了不同風應力強迫下的混合層流場結構和湍能量收支（下述給出的結果是取風速為20m s得到的） 。
  3. The experimental results showed that the extraction rate and mass transfer flux increased with the field strength increasing

    在自行設計的連續電泳萃取池內實驗研究了電場強度、兩相流速等因素對丁醇萃取率及傳質通量的影響。
  4. Also the theoretical basis of the method have been checked through simple deducing simulation and the influences of various physical parameters on the method have been studied. it is shown that the method is theoretically reliable for the production oil wells without very high production rate and is more suitable in field production for oil wells ( i ) in area with bigger geothermal gradient ; ( ii ) producing fluids ( oil and water ) with distinguish thermal characteristics ; ( iii ) producing oil with lower heat capacity or water with higher heat capacity ; ( iv ) with good surface measurement accuracy, as well as the method h as certain requirements on the accuracy of the temperature and flowmeter logs sensors

    就該產出剖面方法的理論基礎進行了簡單的正演模擬和可能影響該方法的各項物理參數進行了全面的考察，結果表明，該方法對于非高產的生產油井來說在理論上是可靠的，在實際生產中適合於（ 1 ） 、油井所在地區地溫梯度較大的油井； （ 2 ） 、油水熱特性差別較大的油井； （ 3 ） 、油比熱容值偏低水比熱容值偏高的油井； （ 4 ） 、井口計量精度較高的油井，並且對井溫測井和流量測井的傳感性精度有一定的要求。
  5. On the basis of modern blasting theories, the moving process of explosive stress field of multi - row and simultaneity is analyzed and the characteristics of stress field inspired by equivalent effect cell of globosity charge in cylindrical charge structure are considered. thus energy distributing equation of detonator explosion is established and the explosive energy utilizing rate factors are known. so the moving process model of the hole filling is constructed and the equation of calculating reasonable filling length is produced

    本文在現代爆破理論的基礎上，分析了多排同段爆炸應力場的作用過程以及柱狀裝藥結構中等效單元球狀藥包所激發的應力場特點，建立了炸藥爆炸能量分佈方程，明確了影響爆炸能量利用率的因素，構建了炮孔充填物運動過程模型，得出計算合理充填長度方程。
  6. The field observation of the sediments of storm surge produced by no. 11 typhoon in 1997 shows that sedimentation rate of storm surge sediments are greater than that of normal astronomical tide sediments, and the grain size shows relative coarse with poor sorting. vertical sequences of the storm sediment show parallel bedding and overlapped by hummock bedding. these characteristics provide good basis for building the index of storm surge deposit

    通過對梁垛河閘9711號臺風的現場觀測並結合目前已有的風暴潮沉積的研究，分析了風暴潮沉積在構造和結構上的特點，從而建立了正常潮灘沉積中風暴潮沉積的識別標志，同時在野外觀測中還發現即使在風暴潮期間，高潮灘上部仍存在只有淤積沒有侵蝕的地帶。
  7. Field operation shows that, by using the hydrodynamic propulsor, not only the penetration rate is increased, the vibration of the bit and drill stem is reduced as well, thereby the service life of the bit is extended

    1995 - 1998年井下液力推進器在大港油田等地區不同區塊20餘口井上施工的實踐證明，使用這種推進器不但可以提高機械鉆速，而且減輕了鉆頭和鉆桿的振動，進而延長了鉆頭壽命。
  8. The spin - down rate has been measured for almost every radio pulsar, and theory indicates that it depends on the strength of the star ' s magnetic field

    這種自轉變慢的速率，幾乎每一顆無線電波霎都量得到，而理論指出，此速率和星體的磁場強度有關。
  9. 6. in the std. rate field, type a rate.

    6 。在「標準費率」域中鍵入一個費率。
  10. Abstract : based on the research of ladle flow field, the steel flow i ng low of six strands small billet cc ladle is researched, the methods improves s teel flowi ng in the ladle by setting separating and blocking slag wall, separates the steel from the slag, increases the bluyance rate of inclusion, achieves the desired results, and applies itself to the practice

    文摘:在中間包流場分佈分析的基礎上，藉助水模擬試驗研究了6流小方坯連鑄中間包內鋼水流動規律，通過設置分流擋渣墻改進中間包內的鋼水流動，分離鋼水和爐渣，提高鋼中夾雜物的上浮率，達到了預期的效果，並應用於生產實踐
  11. This paper, based on the main source of 《 full - text database of chinese journals 》 and 《 the database of chinese science journals 》 ( full - text edition ) and combing the documental metrology with document contents, carries out a statistical analysis on quantity distribution, journal distribution, writer distribution and theme distribution of the approval rate of library readers in china, and supported by some relevant proposals in it, thereby discussing the status and the present problems in the approval rate research of the library readers in china in order to provide some consultant revelation to the future study in this field

    摘要本文以《中國期刊全文數據庫》和《中國科技期刊數據庫》 （全文版）為文獻來源，運用文獻計量學方法並結合文獻內容，對我國圖書館讀者滿意度研究論文進行了數量分佈、期刊分佈、作者分佈及主題分佈的統計分析，從而探討了我國圖書館讀者滿意度研究的現狀和存在的問題，並提出相關建議，以期能對本領域今後的研究提供一些參考與啟示。
  12. In high - performance aircraft the pilots are vulnerable to ci because of some of the aircrafts " characteristics, which include high sustained + gz ( hsg ) acceleration, high rate of onset and high angular acceleration etc. so it has all the while been attached much importance to the studies on the mechanism of ci and the preventing and overcoming method of ci by the researchers in aviation medicine field

    目前以f - 16 、蘇- 27為代表的高性能戰斗機，其所具有的持續高加速度（ + gz ） 、高加速度增長率、高角加速度的特點更易導致飛行中科里奧利錯覺的發生，嚴重危害飛行安全。因此，對科里奧利錯覺的機理及預防與克服研究在航空醫學中一直受到人們的重視。
  13. In the oil - field development production performance analysis and the production management, the technical personnel often does not satisfy an independent table information to the information demand, needs to inquire many correlations information, in the possible situation by the table, the curve or the chart form presents 。 for a this basis dynamic personnel demand development set of oil - field developments assistance dynamic analysis system, including nine big modules : the information intelligence inquiry module, the information statistics module, the dynamic contrast module, the dynamic analysis module, the oil water well chooses the value module, the rate of prediction module, the cartography module, the measure plan administration module, the economic evaluation module, to carry on the rate of prediction module

    在油田開發生產動態分析和生產管理中，技術人員對信息的需求往往不滿足一個單獨的表信息，需要查詢許多相關的信息，在可能的情況下以表、曲線或圖的形式呈現。為此根據動態人員需求的開發了一套油田開發輔助動態分析系統，包括九大模塊:信息智能查詢模塊、信息統計模塊、動態對比模塊、動態分析模塊、油水井選值模塊、產量預測模塊、繪圖模塊、措施方案管理模塊、經濟評價模塊、進行產量預測模塊。
  14. The dual - bath coagulation method suggested by j. a. va n ' t hof could be used in membranes with high selectivity clearance rate of low - molecular weight substances and moderate water flux theoretically. therefore it may be applied in the field of hemofiltration. to improve and optimize the performance of the pes ultrafiltration membrane applied in the hf, here the flat membranes and hollow fiber ( hf ) membranes are made in certain conditions based on the dual - bath coagulation method where pes is used as the membrane material, dmso as solvent and pvp & peg as additives this paper includes five parts as follow : 1

    為了改善和優化聚醚碸超濾膜（單浴法）在血液過濾實際應用中的性能，本論文以j . a . van ' thof等提出的雙凝固浴法為基礎，以聚醚碸（ pes ）為主要成膜材料，以二甲基亞碸為溶劑，並添加一定分子量的致孔劑（ pvp ，聚乙烯吡咯烷酮）以及一定分子量的添加劑（ peg ，聚乙二醇）按照一定配比在一定溫度下製成透明均一的鑄膜液，靜置脫泡后在一定的工藝條件下製成聚醚碸平板膜和中空纖維膜，然後通過測試膜的結構和性能來評估其用於血液過濾中的前景。
  15. As the latest standard in video codec field, h. 264 has such advantage as high compression rate, strong erroe resilience capacity, highly adaptability and so on

    作為視頻編解碼領域的最新標準， h . 264具有壓縮率高、差錯恢復能力強、適用范圍廣等優點。
  16. A data acquisition system with the following features is realized : ? transmission rate up to 100kbyte / s over usb ; ? system ' s dynamic range as high as 120 db ; ? multi - kind of trigger mode control ; ? sampling rate as high as 100 ksps ; ? 12 - bit a / d conversion accuracy ; ? 32k bytes on - board data memory ; ? the system, which was made up of large - scale electronic chips, is small, light and portable, and suitable for field use

    本設計最終實現了一個瞬態信號數據採集系統，它具有以下特點： ?採用usb介面進行高速數據傳輸，傳輸速度達100kbyte / s ； ?採用浮點a / d轉換技術，動態范圍達120db ； ?多種采樣觸發控制方式； ?最高采樣率100ksps ； ? 12位采樣精度： ? 32kb數據緩存； ?使用新型大規模電子器件，系統結構緊湊，重量輕，適合野外作業。
  17. The tm mode dispersion equation of the coaxial bwo in the infinite guiding - magnetic field is derived and solved numerically. the dispersion curve, operating frequency, and the growth rate are obtained

    採用線性理論推導了無窮大引導磁場下的同軸tm模式色散關系式，並編程數值求解了一定條件下的色散曲線、時間增長率、空間增長率。
  18. According to the distribution of the turbulence kinetic energy and turbulence dissipation rate in the whole flow field, the mechanism of energy dissipation of stepped spillway is analyzed

    本文首次從紊動能和紊動耗散率在整個流場的變化規律出發，分析了階梯的消能機理。
  19. Want to have consideration to findings, circumstance of fall victim of density of the mouth that be like bug, crop ( index of be murdered rate, be murdered, loss late ), computation of result of test of field drug effect

    對調查結果要進行計算，如蟲口密度、作物受害情況（被害率、被害指數、損失率） 、田間藥效試驗結果計算等。
  20. The format transcoding includes the frame size conversion, frame rate or field rate conversion, and interlaced / progressive video conversion. in this chapter, the frame size trancoding with arbitrary rational number ratio of l / m is put forward

    提出了變換比例為任意有理數l m時的空域任意尺寸轉碼，以及針對任意尺寸轉碼器的運動矢量重用演算法。
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