靜不穩定的 的英文怎麼說

中文拼音 [jìngwěndìngde]
靜不穩定的 英文
statically unstable
  • : Ⅰ形容詞1. (安定不動; 平靜) still; calm; motionless 2. (沒有聲響; 清靜) silent; quiet Ⅱ名詞(姓氏) a surname
  • : 名詞[書面語] (剁物所用的木墩) a block of wood
  • : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
  • : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
  • : 4次方是 The fourth power of 2 is direction
  • 穩定 : 1 (使穩定) stabilize; steady 2 (穩固安定) stable; steady 3 (物質的性能不易改變的作用) stabi...
  1. By using the maxwell ' s equations and axial symmetry, a method on calculating non - static axial symmetry fields with unstable charge source is given

    摘要利用麥克斯韋方程組和場軸對稱性,給出了由對稱軸態電場計算含電荷源軸對稱非態空間電磁場一種方法。
  2. The first type is the instability excited near the cyclotron frequency of stationary species.

    第一種類型,是在態粒子迴旋頻率附近散發性。
  3. Second, we discuss the influence of environmental referance potential temperture and thermal wind on mesoscale symmetric instability. we find the expression of disturbance stream function and criterion of symmetric instability by analytical method and conclude that change caused by environmental referance potential temperture with height and thermal wind make critical richardson number and disturbance critical half - wave length of symmetric instability larger, that is to say, they benefit the occurance of symmetric instability. third, we study nonlinear perturbation analysis of mesoscale vertical circulation and evolution equation by means of f - plane. non - hydrostatic balance and filiter model

    第二,討論了環境位溫與熱成風因子對中尺度對稱影響。運用解析方法求出了擾動流函數表達式和對稱判據,發現環境參考位溫隨高度變化與熱成風因子使得對稱臨界理查遜數及擾動臨界半波長都變大,這有利於對稱發生。第三,採用f平面、非力平衡、濾聲波模式,討論了中尺度垂直環流非線性攝動分析及演變方程。
  4. Aiming at such problems in combustion system of homemade middle and miniature boiler, as a complex system with the character of dead zone, time variation, serious non - linearity, large time delay, coupling and a lot of disturbance, this paper presents a new set of optimal control resources. by using well - matched control method on system, stable automatic running is realized. having the serious divulgence coals difference a lot from each other in character, instability of chemistry, value of lowest emission of heat, home - made boiler controller is not at all ideal. instead of traditional model that controls the ratio based on proportional control or with the correct signal of the amount of oxygen, this paper, combined with intellect control theory - - fuzzy control and self - optimizing concept, propounded a kind of fuzzy self - optimizing controller to be used in air supplying system of the boiler, and expatiates on the idea of dividing the control process into two parts, dynamic and static to realize, thus meets the demand of homemade boiler economic running

    本設計針對國產中、小型電站鍋爐燃燒系統參數時變、嚴重非線性、干擾因素復雜、耦合嚴重、模型易確特點,提出多變量協調控制方案,解決了系統可控性差,難以實現自動運行問題;在此基礎上,改變以往以煙氣含氧量控制送風傳統模式,針對國產電站鍋爐設備主體及一、二次送風迴路泄露嚴重,煤種混雜、成分、燃燒發熱值低、燃燒效率高等問題,應用智能控制理論中模糊控制技術,結合自尋最優控制思想,設計了一種模糊自尋優控制器,應用在電站鍋爐送風控制系統上,並闡述了動態兩種實現途徑,通過在線優化風煤配比,實現最佳經濟燃燒,切實保障了鍋爐經濟運行。
  5. Biomechanical comparison of static three - dimensional screw - plate system and dynamic hip screw in fixing unstable femoral neck fracture

    態三維釘板系統與滑動鵝頭釘固股骨頸骨折生物力學比較
  6. In order to make clear the changing situation about various meteorological element fields during the heavy rain. the diagnostic analysis in three aspects was done in this text : the vapor conditions, in which the difference of the temperature and dew point, relative humidity, vapor flux and the divergence of vapor flux were discussed ; the dynamic and thermodynamic conditions, vorticity, divergence and vertical velocity were analyzed ; the vertical layer condition, which included potential temperature, static stability, convective ( potential ) instability and the vertical profile of eight physical fields over the observatory of shenyang

    為了弄清這次暴雨過程各氣象要素場演變情況,分三方面對暴雨水汽條件(使用了溫度露點差、相對濕度、水汽通量和水汽通量散度) 、動力條件(使用了散度、渦度和垂直速度)和垂直層結條件(使用了位溫、度和潛在度以及沈陽單站8個物理量垂直廓線)等變化,分別進行了診斷分析。
  7. Electricity power system computer simulation the computing include the current computing, simple fault computing, complicated fault computing, quiescent stabilization the computing and development stabilization the computing etc. because the computing software of electricity power system are all the earlier words software, it is very difficulty for studying and isn " t easily for using and ca n ' t draw the graphics of the electricity power system ect

    對電力系統運行狀態進行分析需要進行大量計算,電力系統計算機模擬計算主要包括潮流計算、簡單故障計算、復雜故障計算、計算和動態計算等計算。本文針對當前電力系統計算軟體大多都是早期字元界面軟體,學習難度大,易使用,以及具備電力系統圖形繪制等弊病,對microsoft公司visualc + + 6 . 0及其所提供microsoft基礎類庫( mfc )展開了理論與應用研究工作。
  8. Inversion of the near surface structure can be done by the method with refraction first - break information, so it can be used to solve 2d long wavelength and short wavelength statics problems for complex near surface areas ; 4 ) a kind of 3d statics method with statistical deposition of refraction first - break traveling time in common shot domain is developed

    它適應折射面起伏大、折射層較近地表條件,利用該方法可以解決二維沙漠、黃土塬覆蓋區等復雜地表條件長短波長校正問題; ( 4 )三維共炮域折射旅行時統計分解校正方法。
  9. On the contrary, the competition between wenhui andxinmin newspaper group and jiefang newspaper group is not as fierce as that in guangzhou. xinmin eveningpaper controls the market for dozens of years. xinwen morning and xinwen eveningpaper, without hurting xinwin eveningpaper, has been developing quietly and rapidly. some service - oriented newspapers, such as shenjiang service newspaper and sanghai wednesday, though share a little part of the market and do not have much influence, have their stable distributions and attract remarkable advertisement income, which gain them profits

    以其經濟實力、消費水平以及市場容量而言,上海報業競爭程度應與廣州市場旗鼓相當,恰恰相反,文匯新民報業集團和解放日報報業集團之間市場角逐像廣州報業那像劍拔弩張,幾十年如一日《新民晚報》平地壟斷市場, 《新聞晨報》 、 《新聞晚報》在並沖擊《新民晚報》前提下,也平而快速地成長起來;一些淡化新聞以實用服務立足報紙如《申江服務導報》 《上海星期三》等,影響力雖大,市場份額雖小,但發行,能吸引可觀廣告收入,基本贏利。
  10. The static loads were placed step by step in time sequence in order to simulate the construction conditions of the dam during the calculation. the results of the analysis show that excess pore water pressure would not appear in the design section during the analysis results that the dam was statically stable and the construction process was reasonable

    力分析過程中採用在時域上逐步加載方法,模擬了壩體施工填築過程,計算結果表明,設計斷面在貯灰過程中會產生很高孔壓,壩體狀態較好,施工進度合理。
  11. Vanadium is important and valuable in steel - making, electronic production and national defence industry etc. now, the operation pattern of refining vanadium in our nation is based on human experiences, and the automation degree is still at a low level. operation mode based on human experiences is one of the main reasons make the quality of semi - steel and vanadium product unstable. in developed contury such as russian, static model was used to control the process of vanadium refining

    我國目前轉爐提釩為人工操作模式,由操作人員根據經驗和感覺進行操作,自動化水平低,存在著釩渣質量和半鋼質量問題;在國外,俄羅斯等一些國家已經在使用態模型對提釩過程進行控制,取得了較好效果,但是這些模型大都是根據復雜物理化學規律研製機理模型,要求有非常生產流程和工藝條件,對于鐵水成分、生產設備等變化適應性差,但移植困難,而且模型價格異常昂貴。
  12. The analysis of dry pv shows that the high pv dominate the area of typhoon, the higher is the center value of pv, the stronger is the typhoon. lt is also shown that the most important reason resulting in rainstorm is the cold air ( high pv ) which spreads to south from the upper troposphere or lower stratosphere and transports into the warm air. the joining situation of upper and lower pv area make vortex develop. pv transpotation reduces static stability, which increases the releasing of instability energy and makes rainstorm amplify

    對干位渦分析表明:臺風或臺風環流區為高值位渦區,臺風越強,位渦中心值越大;對流層上部或平流層下部冷空氣(高位渦)擴散南下與暖濕氣流交匯是造成特大暴雨重要原因,因為上游斜壓性發展使對流層頂發生折疊,平流層與對流層相互作用增強,上下位渦區相接形勢使低層渦旋發展,上升運動加強,位渦下傳有效地降低了度,有利於位勢能量釋放,使得暴雨增幅。
  13. In the regions of the east plain, the geological conditions of the surface vary little, so the effective reflected waves in the original seismic data are relatively stable, the static correction problem and all kinds of disturbance are not much obvious and the signal - to - noise ratio ( snr ) is relatively higher

    在東部平原地區,由於地表地質條件變化大,原始地震資料中有效反射波相對校正問題及各類干擾十分突出,信噪比相對較高,在常規處理中都已形成了一套相對地震數據處理流程。
  14. And zhou xiyuan et al. the serial isolation system consisting of laminated rubber bearing and r / c column and the combined bearing consisting of an up small one and down larger one are introduced and their calculation formulas of static stability is derived. with the latter calculation formula, the static stability formula of the serial system considering p - a effect of r / c column can be acquired

    回顧了kelly等人和周錫元等人對橡膠支座性研究,然後介紹了周錫元等人對疊層橡膠支座和r / c柱串聯體系以及用兩個同截面疊層橡膠支座組成組合橡膠支座隔震體系提出實用分析公式,由後者計算公式,可進一步求得考慮r / c柱p -效應串聯體系公式。
  15. But the traditional static design method is based on statics and seldom contains guidelines for incorporating the dynamic behavior of the moving belt. large safety factors are employed to accommodate most dynamic stresses in the belt. this can not only increase total cost but also give rise to system instability and higher dynamic stresses that can damage the belt, drums, idlers, bearings and other parts of the conveyor

    在高速情況下,帶式輸送機存在主要問題之一是起制動過程中輸送帶動張力問題,而傳統態設計方法將輸送帶視作剛體,並且在力學基礎上按止或勻速運行狀態對輸送機系統進行受力分析和參數設計,將動張力以一系數計入,用加大安全系數方法提高設計可靠性,這僅會使帶式輸送機成本提高,還可能引發起制動過程中較大輸送帶動應力及運行過程中性,從而導致輸送帶接頭失效及滾筒、托輥、軸承乃至其它部件損壞。
  16. By theoretical analysis and actual measurement of field and phenomena analysis of rock burst, the author illustrates the directionless pressure, sudden movement and rupture of hard roof lead to the internal cracks of coal instable development, which easily results in rock burst happening

    摘要通過理論分析、現場實測和沖擊礦壓現象分析,說明了頂板堅硬巖層產生壓和突然運動、破斷均可使煤體內部裂紋擴展而容易發生沖擊礦壓。
  17. All the evidences point that the new embed control system of pizeo actuator gets excellent performance. it can be used in both quick and stable positioning area. still the embed control system contributes a lot for the research of smaller nano - positioning system based on pizeoceramic in the future

    本文研製壓電陶瓷嵌入式控制系統適用於、動態高速位等同應用場合,為進一步研製小型化、集成化、通用化壓電陶瓷微位系統提供了理論和實踐經驗。
  18. In part iii, memory position and velocity feedback is proposed to guarantee stability and transparency of a teleoperation robot system with time delay and uncertain parameters. linear matrix inequality is used to design feedback parameters of the system. in this way, static track error between the master and the slave is little, however, sometimes the feedback parameters does n ' t exist

    第三部分針對遙操作機器人系統傳輸通道中通訊時延和系統模型性,造成系統和操作性能降低等問題,提出用帶記憶位置和速度反饋控制方法,並用線性矩陣等式對系統反饋參數進行設計,使系統魯棒漸近,主、從機械手態跟蹤誤差較小,而且使系統具有良好透明性。
  19. Our goals are to understand how well such robots can perform around people in everyday settings and to compare quantitatively its performance, safety and navigation abilities with those of traditional, statically stable robots

    我們目標是了解這類機器人在日常環境中跟人類一起行動表現如何,以及以量化方式比較它和傳統機器人在效果、安全及導覽能力同。
  20. The equilibrium condition for the cylindrical configuration in fluid membrane is re - examined in this paper, using the direct and the indirect variational method and taking account of possible influences of its topology

    本文還研究了柱狀膜力學方程。由於開口柱狀膜性,對柱狀膜研究只能採取近似方法。
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