field duration 中文意思是什麼
field duration
解釋
場周期-
This paper use the ncep / ncar day - to - day reanalysis data of 500hpa high field and so on, choose ural mountain, baikal, okhotsk as the key district, the mid - high latitude of eurasia circulation courses that have long duration ( scale of time is middle, namely during 10 - 30 day ), maybe continue continuously after being intermittence of 1 - 2 days in middle, appear repeatedly is for research object, define an index " i " of the circulation pattern over mid - high latitude of eurasia. a method is proposed to identify the summer typical persistent circulation pattern at 500hpa levels over eurasia mid - high latitude. the climate characteristics of those typical persistent circulation patterns are studied
本文利用ncep / ncar再分析逐日500hpa高度場等資料，選擇烏拉爾山、貝加爾湖、鄂霍次克海這三個地方作為關鍵區，以夏季歐亞中高緯度持續時間長（時間尺度屬于中間時間尺度，即10 ? 30天之間） 、中間可能會間歇1 、 2天然後又繼續持續、反復出現的環流過程為研究對象，定義了一個夏季歐亞中高緯流型指數，在此基礎上提出了一種對夏季歐亞中高緯500hpa典型持續流型的界定方法，研究了典型持續流型的氣候特徵，分析了流型指數的年代際變化，以及對應不同階段、不同流型的降水場、加熱場、海溫場等的主要特徵。 -
At 20 space charge in frp rod materials increases with increasing of field strength or high voltage application duration
20下芯棒材料中空間電荷的積累隨電場增大、電壓作用時間的增加而增加。 -
Space charge properties of frp rod materials are influenced by temperature, field strength and high voltage application duration
結果表明，在高壓直流電場作用下，芯棒材料內部積累的空間電荷的極性和密度受到溫度、電場強度和電場作用時間等因素的影響。 -
The discussion of the label " groupware " has essentially only one aspect ? the denotation of those instrumentalities through which cscw ( the phenomenon ) is realized and toward which cscw ( the field ) addresses itself. this paper concerns in two important issues on groupware system : 1 ) " issue on the openess and integration of legacy system " : with the rapid progress of internet and the continual emergence of commercial software system, how to integrate into the new infrastructure the enterprise ' s mission - critical it assets. 2 ) " issue on tailorablility based on composability and extensibility " : depending on factors such as task, group, duration and context, cooperative work can have many forms
2 ）群件系統支持用戶協同工作，用戶需求因協同目的、形式、環境的不同差異很大，一個成功的群件產品應該具備高度的靈活性以適應這些需求，本文稱之為「基於復合和擴展的可裁剪性問題」這兩個問題的提出源於實驗室課題「建築工程項目和圖檔管理系統」的開發，作者通過實踐和理論的總結，將corba技術與組件模型運用到了這兩個問題的探討中，在前人研究的基礎上，成功的解決了上述問題，並將論文的結論和方法應用到了課題中，作為開發的指導，取得了良好的成效。 -
According to differences of construction process, boundary condition, temperature and stress of two schemes extending 3m deep short seam on upstream face in the middle of rcc overflow section and no short seam are calculated, what " s more, in this paper the equivalent line drawing of stable temperature field and unstable temperature field during construction and operation period and the duration curve drawing of typical points " s temperature and stress are plotted, and the results of peak and minimum on temperature in every month and maximum on tensile stress are attained
根據施工過程和邊界條件，對溢流壩段中間上游面增設3m深短縫和不設短縫兩個方案進行了溫度和應力計算，並繪制出穩定溫度場等值線圖及施工期、運行期非穩定溫度場等值線圖，典型點溫度和應力歷時曲線圖，逐月最高、最低溫度和最大拉應力及相應位置等成果。 -
The direct seeding experiments of different pteris vittata genotypes showed that there was significant difference in germination and emergence traits among pteris vittata genotypes collected from different areas in china, with germinating time ranging from 12 - 40 days, duration from germination to emergence varying between 13 - 46 days. as the seeds of pteris vittata are very small, with little stored nutrition, the genotypes, which are quick in germination and emergence, are suitable for direct seeding in the field
不同基因型的蜈蚣草的直接播種試驗研究表明，來自我國不同地區的蜈蚣草基因型在萌發特性有顯著差異，萌發時間變動在12 - 40d之間，萌發到成苗時間變化在13 - 46d 。因為蜈蚣草種子小，貯藏的營養物質少，故具有快速萌發和成苗特性的基因型易於田間直接育苗。 -
Baby seeding direct sowing with re - paper covering were introduced in this paper in this study, many experiments were done include leveling the land of 20 hm2 paddy field experiment by using laser controlled land leveling machine in jing ertun village of liaoyang city, testing and summarizing the rules of breeding the baby rice used to sowing, investigating the growing of rice during its whole growth duration, testing and analyzing the performance both a kind of baby rice seedling direct planting machine and the baby rice seedling - throwing machine
本文還介紹了水稻紙膜覆蓋直播種植技術的種植方法。本文通過在遼陽市太子河區景爾屯村的20hm ~ 2水田應用激光設備進行平地作業，對乳芽培育的工藝規范進行了試驗和總結，跟蹤調查了水稻全生育期的生長狀況，分別對一種水稻乳芽直播種植機械和乳芽拋播機械進行了性能檢測與分析。 -
3. the study on the parameters that affect the seepage field of unsaturated slopes based on the existent program of 3 - d saturated - unsaturated seepage, mainly including ( 1 ) the combination of different rainfall intensity, duration, and type ; ( 2 ) the essence of medium, e. g
利用已有的三維飽和-非飽和滲流程序對在降雨條件下影響非飽和邊坡滲流場的參數進行研究，主要包括： （ 1 ）不同降雨強度、降雨歷時、雨型等降雨類型組合； （ 2 -
Based on the analysis of the data and information from the field observations and lab experiments, the results were as follows : ( 1 ) the results of the simulated rainfall and runoff erosion experiments in lab. under the design experiment conditions including the constant rainfall intensities of 1. 0, 2. 0, 3. 0mm / min and the rainfall durations of 30, 70 minutes and with soil moisture content 9. 5 % or 10. 0 % for dry situation, as well as with the soil moisture content 19. 0 % or 20. 0 % for wet situation, the soil erosion increased nonlinearly with the rainfall intensity, and the rainfall duration. the results of the experiments indicated that the amount of soil erosion caused by the simulated rainfall and runoff on the dry - soil slope was more than that on the wet - soil slope
通過實地觀測及室內試驗資料分析，得到如下研究成果： 1 、室內模擬降雨徑流對戧坡的侵蝕試驗研究結果在定雨強為1 . 0 、 2 . 0 、 3 . 0mm min ，降雨歷時30 、 70分鐘，干土含水量為9 . 5 10 . 0 ，濕土含水量為19 . 0 20 . 0的條件下，侵蝕量與雨強成非線性正比關系；雨強大，侵蝕量大；降雨歷時長，侵蝕量也大；堤坡含水量大時，侵蝕量小，堤坡含水量小時侵蝕量大。 -
( 4 ) the light evoked loca1 field potential with latency 20 ms could be recorded on the surface of visual area l of the rabbit. it was inhibited with latency l0 ms and duration 20 ms after electrical stimulation of the basal amygdala
O ）電刺激杏仁基底核可在兔視1區皮層表面誘發出一個局部場電位，其潛伏期僅為l 2ms ，表明這可能是經由單突觸直接投射的結果。 -
In this application, the lorentz force generated by the interaction between the current in the wire and the geomagnetic field produces an electro - dynamic drag leading to a fast orbital decay. in this paper, we make an intensive study of the process of de - orbiting using electro - dynamic tether system. the concrete work includes : firstly, i have studied the basic principle of how to generate the electro - dynamic drag, modeled via accuracy geomagnetism, made a concrete analysis of the de - orbiting duration, the magnitude and direction of electro - dynamic drag under the action of the dipole and accurate geomagnetic models, set up a counterbalance between electro - dynamic torque and gravity gradient torque, emulate the de - orbiting process of spacecraft, and compared the change of six orbital factors and the de - orbiting duration under the action of the dipole and accurate geomagnetic models
本文對基於電動力纜繩的航天器離軌過程進行了深入研究，具體工作如下:首先，本文研究了電動力纜繩產生電動力拉力的基本原理，建立了精確地磁場模型;分別在偶極子模型和精確地磁場模型作用下，對電動力拉力的大小、方向、離軌時間及電動力纜繩傾角的大小進行了計算分析;建立了電動力力矩與纜繩系統重力梯度力矩的平衡關系;分析了電動力力矩為系統提供能量的原理;最後分別在偶極子地磁場模型和精確地磁場模型作用下，對受電動力纜繩作用的航天器的離軌過程進行模擬，分析了在不同精度地磁場模型下，航天器離軌過程中各軌道參數的變化情況，並比較了不同模型對離軌時間的影響。 -
Many risk measuring techniques appears, such as variance method, p analysis method, duration method. these techniques only can be applied into given financial tools or specific field
在西方，許多風險衡量技術，如標準差、系數、持續期和delta等方法都應運而生，但這些技術都只能適應特定的金融工具或在特定的范圍內使用，難以綜合反映風險承擔情況。 -
The parameters in the study included the fire duration time, the axial load level, the section type and the strengthen method. the ultimate lateral strength, flexural stiffness, dissipated energy and ductility of the columns were compared and analyzed. ( 2 ) based on the stress - strain relations for steel and concrete after high temperature and the temperature field in the structural member, fiber - based model was developed to calculate the hysteretic moment ( m ) versus curvature ( ) relations and the lateral load ( p ) versus lateral displacement ( ? )
（ 2 ）在確定高溫后鋼材和混凝土在往復荷載作用下的應力-應變關系以及構件截面溫度場的基礎上，考慮力-溫度-時間作用路徑，建立了火災后鋼管混凝土壓彎構件滯回性能的理論分析模型，對火災后鋼管混凝土構件的彎矩-曲率（ m - ） 、荷載-變形（ p - ）滯回關系曲線進行了分析，計算結果與實驗結果總體上吻合較好。 -
The students of the geological class will be out on field exploration for the duration of the school year
地質班的學生將把本學年的全部時間用作野外勘探。 -
The cleavage rate of oocytes at 18 - 19h after hcg injection was clearly higher than those at 12 - 13h and 15 - 16h after activation ( 71. 67 % vs 7. 50 % and 55. 83 %, p < 0. 01 ). the rates of avtivation, cleavage and development of blastocysts after 22h started to fall, but with no difference with those of 18 - 19h ( p > 0. 05 ). to sum up, the optimal electric stimulation conditions of mouse oocytes at 18 - 19h after hcg injection is 2. 0kv / cm direct current field strength, 80us pulse duration, 3 times pulse and 0. 3mol / l mannitol medium with 0. 1 mmol / l cacl2 and 0. 1 mmol / l mgso4
880和12 50o ） ，但與18l的卵母細胞組無明顯差異o 0刀5 ） 。綜上所述，在本實驗室條件下，以含ca刀、 mgh的甘露醇溶液為激活液，採用2刀by cm強度、 80呷脈寬、連續3次脈沖（每次間隔10min ）刺激注射hcg后18二9h的小鼠卵母細胞，可獲得較為理想的激活效果。 -
Presently, the laser pulse from the high power ultrashort laser system is several femtoseconds in duration, tw ( or pw ) level in peak power, 1020 w / cm2 ( or 1021 w / cm2 ) in focusing power density, according electric field is much stronger than coulomb field in atoms
目前，高功率超短脈沖激光放大系統輸出的激光，脈寬達到幾個飛秒，峰值功率達到太瓦甚至拍瓦量級，聚焦功率密度達10 ~ 20w cm ~ 2 ，甚至1021w cm2 ，相應的電場比原子內庫侖場強得多。 -
As an important basic study platform, short - duration turbine testing plat form has developed in the mechanism research field and has now been applied to validation of new design concept and check of cfd software
同時，作為重要的基礎研究平臺，短周期渦輪實驗臺在機理研究領域也有所拓寬，開始被應用於新設計理念的驗證、 cfd設計分析軟體的校驗等新的領域。 -
Numerical models were used to study how the infiltration into a slope varies with the rainfall intensity, rain fall duration, soil properties and how the infiltration influences the stability of a slope. a numerical program is coded to solve the transient seepage field by using the finite element and finite difference methods based on the saturated - unsatured soil seepage theory. a model for considering the variations of soil weight and shear strength is created / constructed and the corresponding program is coded
本文針對受降雨影響顯著的非飽和殘積土土坡，運用飽和?非飽和土壤水分運動的理論和二維非穩態滲流有限元模型，模擬雨水入滲引起的暫態滲流場，將計算所得到的暫態孔隙水壓力分佈用於考慮了基質吸力影響的土坡穩定安全系數的計算當中，建立了考慮非飽和土土坡從雨水入滲到出現滑坡危險全過程的計算模型。 -
When you pass a delegate as a parameter, or pass a delegate contained as a field in a structure, it remains uncollected for the duration of the call
如果委託作為參數進行傳遞，或者所包含的委託作為結構中的欄位進行傳遞，則該委託在調用期間不會被回收。 -
The conservation of energy and the magnetic field energy of temporary duration in rl circuit
電路暫態過程中的能量守恆與磁場的能量
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