輻合點 的英文怎麼說

中文拼音 [diǎn]
輻合點 英文
convergence point
  • : 名詞(車輪中車轂和輪圈的連接物) spoke
  • : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
  • : Ⅰ名詞1 (液體的小滴) drop (of liquid) 2 (細小的痕跡) spot; dot; speck 3 (漢字的筆畫「、」)...
  1. Introducing the theory and application of boundary element method on the sound radiation, giving the process of solving vibration noise radiation problem using boundary element analysis software ; presenting the coupling theory and the combination analysis of finite element method and boundary element method, and doing relevant analysis based on close drum shell ; programming the noise data simulation program using the numerical calculation software, simulating the acoustic and pressure data of a key point in the transient response acoustic field of the close drum shell, realizing the audibility of the noise, using the virtual reality tools to simulate the vibration noise of the drum shell ; combining the finite element method and boundary element method to analyze the vibration noise radiation of some gear box, and completing the whole simulation process of the vibration noise of the gear box

    介紹了邊界元法在聲射問題上的理論及應用;並給出了運用邊界元法分析軟體求解振動聲射問題的過程。闡述了有限元法和邊界元法的耦理論及組分析方法,並以封閉鼓形薄殼為分析對象進行了相應的分析。利用數字計算軟體編制了噪聲數據模擬程序,並模擬了通過組方法分析封閉鼓形薄殼瞬態響應聲場而獲得一關鍵的聲壓數據,實現聲音的可聽化,隨后通過虛擬現實工具實現了該情形下橢球殼振動噪聲的虛擬模擬。
  2. It does not need much area, not any pollution, not consuming much electricity power, not need much cost. gshp combined floor radiation air - conditioning system possess high seasonal average cop value and great capacity of edaphic depositing heat energy, can ease up supplied water temperature fluctuating with the change of the outdoor air temperature

    地源熱泵技術聯地板射對房間進行冷暖聯供的形式,具有地源熱泵季節性平均性能系數高、土壤蓄熱能力強、能緩解空氣源熱泵存在的供冷供熱能力隨環境溫度波動大的矛盾等優
  3. The result indicates that, in the course of the rainstorm in huoshan, there are obvious low - level jet of great intensity, infection of mesoscale shear line, enhancement of plus vorticity which increases intensity of convergence, improves ascending velocity and brings on precipitation, and quick enhancement of helicity which provides the basis to forecast, in addition, convergence of moisture flux and analyzed potential vorticity which reflects baroclinic convective instability sufficiently indicate the characteristics of the rainstorm

    結果表明:此次霍山暴雨發生前後,存在明顯的大強度低空急流,並受到中尺度切變線的影響,而且正渦度的加強引起了加劇,提高了上升速度從而引起降水,同時暴雨發生前螺旋度的迅速增強,也為預報提供了根據,另外水汽通量的以及分析位渦反映出的斜壓對流不穩定都充分體現了這次降水的特
  4. 1 ) lay stress on the combination of language training and thinking training, and weave together with the ability of listening, speaking, reading and writing. 2 ) emphasize the comprehensiveness of knowledge, sensibility, competence and understanding. through certain affecting and pleasing to eye ways to inspire thinking and encourage aspiration and cultivate students of wholistic development 3 ) employ diversified methods of teaching and learning and establish a radial communicative teaching model. 4 ) make cll immerge into the daily life in class, main points of language of the course are practiced, while, out of class, the knowledge is extended, broaden, and deepened

    認為絕不能單打一或以偏概全,一是強調語言訓練和思維訓練相結,聽說讀寫能力貫穿其中;二是強調知情能理的綜,通過娛目、動情、激思、鼓志等方法全面地發展人;三是教與學多種形式的綜,形成射式的教學交往模式;四是語文與生活同在,通過課內練在子上,課外延伸、拓展、深化。
  5. The genetic relationship between isolates of europe and china was closer than china and north america ' s. the inner genetic diversity of chinese phylogenesis lineages is higher, at the same time the territorial genetic differentiation and evolution direction divergence have taken place. the mixed lineage in heilongjiang province indicated that the isolates distribution pattern of a. gallica in heilongjiang province accorded with the characteristic that the distribution was formed by adaptive radiation of common ancestral forms

    在以黑龍江省高盧蜜環菌為主的中國大陸發育系內部的遺傳分化程度較大而且遺傳多樣性較高,並出現了區域性的遺傳分異和進化方向的分歧,同時還證明了黑龍江省內高盧蜜環菌的分佈格局也符由共同的遠古祖先種適應性射形成的特
  6. More than 50 shipping routes are being operated, including main - haul and feeder services, to cater for the needs of both domestic and international trade. china shipping container lines co., ltd. has ranker among the world s 20 largest container carriers

    中海集團物流業已形成了海陸空立體綜服務功能,在全國建有8大區域公司, 140家分公司和代理網,構建了立足沿海射全國連接全球的物流供應鏈。
  7. To the influence of the plateau terrain, the impact of the elevation and the roughness of terrain to every energy component out and incoming are study, and basing the soil spectrum model proposed above, a new radiative transfer model of terrain area was put forwarded in which the soil water content, lai, terrain roughness and elevation were considered synchronously, and incoming scatter light was integral with the solid angle of semi - globe space defined by the slope of the pixel, so scattering lights of terrain and the sky are properly considered, but the operation is still within the acceptable range

    地形與反射率的關系是本文研究的一個重。本文對崎嶇山地象元的各入射光和反(散)射光分量進行了深入分析,在所提出的濕潤土壤光譜模型和植被冠層模型的基礎之上進一步提出了新的適青藏高原的山地射傳輸模型。該模型同時考慮了土壤含水量、植被覆蓋( lai ) 、地形起伏和海拔高度的影響,並以象元坡面定義的半球空間立體角對環境入射光進行積分,使周圍地形和天空散射光均得到適當考慮,計算量又在可接受范圍內。
  8. This paper introduces the latest progress of high level radioactive waste disposal programs in the world, and discusses the key scientific issues as follows : ( 1 ) the precise prediction of the evolution of a repository site ; ( 2 ) the characteristics of deep geological environment ; ( 3 ) the behaviour of deep rock mass, groundwater and engineering material under coupled conditions ( intermediate to high temperatures, geostress, hydraulic, chemical, biological and radiation process, etc ) ; ( 4 ) the geochemical behaviour of transuranic radionuclides with low concentration and its movement with groundwater : and ( 5 ) the safety assessment of disposal system

    在介紹國內外最新研究進展的基礎上,重討論高放廢物地質處置的若干關鍵科學問題:處置庫場址地質演化的精確預測、深部地質環境特徵、多場耦條件下(中(高)溫、地殼應力、水力作用、化學作用、生物作用和射作用等)深部巖體、地下水和工程材料的行為、低濃度超鈾放射性核素的地球化學行為與隨地下水遷移行為及處置系統的安全評價。
  9. Based on the theory of retrieving lst through satellite remote - sensing and the characters of semi - tropical climate, topography, vegetation and the noaa / avhrr data in guangxi, the split - window algorithms for retrieving the lst from space, including the kerr algorithm, the becker & li algorithm, the qin algorithm, the franca & cracknell algorithm and some others, were analyzed and compared

    根據利用衛星遙感資料反演lst的理論方法,結廣西現有的衛星資料及亞熱帶氣候、地貌、植被等特,對國內外的kerretal演算法、 becker & li演算法、 qinetal演算法和franca & cracknell演算法等10多種反演lst的分裂窗演算法及其相關的參數估算方法進行了適用性分析,得出採用射率模型中的beckerandli演算法計算廣西白天的lst比較適用。
  10. While carrying out the scheme, at first, the basic theory of antenna, array antenna and electromagnetic absorption, the performance parameter of antenna and parabolic antenna are deeply researched. in conformity, the characteristic and calculation of aperture field and near - to - far - field transformation for radiation pattern are detailed analyzed. second, the factors such as, the amount of the antenna elements, mutual coupling between each element, ground and the buildings on earth ' s surface, which affect the performance of array antennas ’ resultant field are stressed discussed

    在系統實現過程中,課題首先從天線、陣列天線,以及電磁場計算方法的基本理論著手,分析了天線與拋物面天線的各項性能參數,以及天線的口面場和近-遠區射場的特和計算;進而,更加深入的討論和研究影響天線陣列成場強的各項因素,包括系統所使用的天線單元個數對陣列成場的影響、天線單元之間由於互耦造成的影響、傳播過程中地面和/或地面建築物的影響等。
  11. Secondly, according to the characteristics of few hubs in the practical hub and spoke airline network, the shortest path algorithm is improved, and an exact algorithm is proposed to solve the airline network robust optimization model, with which robust solutions suitable for various possible scenarios are obtained

    然後結中樞射航線網路實際應用中樞紐個數少的特,對最短路演算法加以改進,提出了一種求解航線網路魯棒優化設計的精確演算法,得到了適用於多種可能情景的魯棒解。
  12. Point type heat fire detector meets the requirements of gb4716 - 1993. the test itemsinclude electrostatic discharge, radiated electromagnetic fields, and electrical transient bursts

    型感溫火災探測器應符gb4716 - 1993標準的要求。檢測項目有:靜電放電;射電磁場;電快速瞬變脈沖群。
  13. On the basis of set operation on integrity bo - dy, taking advanta ge of the excellency provided abundant topolo - gical information by the ra dial edge data structure, applying the divide and conquer method for inha ncing the efficiency of the system, the boolean operation on integrity or unintegrity bodys is furnished

    本文在正則形體集運算演算法的基礎上,充分應用射邊結構提供豐富拓撲信息的優,運用了分而治之的編程思想,實現了形體間的正則、非正則布爾運算。
  14. Based on the spectral irradiance measured with the sun - atmosphere ultraviolet spectrum radiometer ( sauvs ) developed by the institute of atmosphere physics and the changchun institute of optics and fine mechanics, chinese academy of sciences, measuring the direct and scatter irradiance spectrum of ultraviolet waveband which arrives in beijing global surface, giving a method of retrieving the aerosol optical depth ( aod ) and put up with primary results that exponential function can fit the retrieval results according to its visibility, putting forth different coefficients and functions on variable visibility, also giving a primary analysis on the aod in dust - storm day and some contrast between sun - day and dust - storm day, analyzing the ratio between scatter and total irradiance, and its relationship with atmosphere mass and total atmosphere optical depth, lastly contrasting with the survey results by aeronet beijing station, the results of retrieval is in reason, this work gives some help in researching the co - effect of aerosol - radiance - climate and makes preparation for further survey on the radiance characteristics of dust

    利用中國科學院大氣物理研究所與長春光學精密機械研究所作研製的太陽?大氣紫外光譜射計( sauvs ) ,測量到達北京地表的太陽直接和散射紫外光譜射,導出了大氣氣溶膠的光學厚度。初步結果表明:北京紫外波段大氣氣溶膠的光學厚度在絕大部分情況下隨波長的增加而單調減小,用指數函數可以較好地擬反演結果,統計得到了三個水平能見度狀況下擬函數的系數值和公式表達式;初步分析了揚沙、浮塵、沙塵暴天氣條件下氣溶膠光學厚度的特,並與一般晴朗天氣條件下的氣溶膠光學厚度特做了比較分析;分析了太陽紫外譜射中散射射與大氣質量、大氣總光學厚度的定性關系和定量表達式;最後與全球氣溶膠監測網路( aeronet )北京站的資料做比對,表明反演結果基本理。
  15. The analysis of the large - scale synoptic situation shows that strong precipitation is closely related to the explosion of monsoon and the intensification of cross - equatorial flow which bring a lot of vapor and meet with cold masses at the eastern of northwest district on 8th, june causing extremely heavy rainfall ; that subtropical high - level jet at 200hpa, subtropical high at 500hpa and low - level jet at 850hpa are the weather backgrounds favorable to strong precipitation ; that the pattern of eastern highs and western lows and the establishment of a low - level jet and the coupling between upper - and low - level patterns that determine that the rain occurred in the east of the northwest china ( on average, this is the rainy season for the south of china, but not for the northwest china ) ; that water vapor comes from southerly and easterly flow which converge at the eastern of northwest district with convergence mainly in lower levels and pbl ; that the high value of the whole - level apparent heat source < q1 > is near the area of large rainfall in the direction of northeasterly - southwesterly agreeable to shear line very well and the condensation latent heat releasing is main heat source with vertical advection item playing key role in q1 and q2 ; that there is a vertical secondary circulation crossing low - lever jet whose ascending branch is at the area of large rainfall ; that the construction of convection instability and conditional symmetry instability results that there is not only deep thermal instability, but also moisture influx and triggering mechanism of thermal instability causing strong torrential rain

    作為對比,本文還對2002年6月24 - 25日發生在北京地區的強地形雨進行了分析,並討論陜南、北京地區兩地暴雨的異同以及地形作用的共性和個性,為兩地暴雨預報提供有益的參考,得出了一些很有意義的結果: 1大尺度環流背景分析表明: ( 1 ) 「 02 . 6 」強降水與6月上旬越赤道氣流和季風爆發密切相關,攜帶大量水汽的偏南氣流與冷空氣於6月8日交匯在西北地區東部,導致了這次強降水的發生; ( 2 ) 200hpa的副熱帶西風急流、 500hpa副高以及850hpa的低空急流的配置非常有利於本文分析之陜西強降水的發展與維持。大尺度形勢分析表明,東高西低形勢場、低空急流的建立和高低空形勢的配置決定了這場降雨出現在西北地區東部。與暴雨區相聯系,存在一支橫越低空急流的經向垂直環流,暴雨區處于該垂直環流的上升支; ( 3 )偏南和偏東氣流水汽通道在西北地區東部交匯,水汽的積聚主要在對流層低層和行星邊界層內完成; ( 4 )整層的視熱源< q _ 1 >高值區在暴雨區附近呈東北-西南向分佈,與切變線走向非常一致,降水產生的凝結潛熱釋放是強降水區大氣的主要熱源。
  16. Emphasis is laid on the new methods of post - functionallization in terms of plasma graft copolymerization, supercritical carbon dioxide graft copolymerization and solid state mechanical chemical graft copolymerization, and some renovations to the traditional post - functionallization in terms of solvent graft copolymerization, radiation graft copolymerization and solid phase graft copolymerization

    本文重介紹近年來后功能化的新技術如等離子體接枝、超臨界二氧化碳接枝、固相力化學接枝和縮接枝以及傳統方法比如溶液接枝法、射接枝法和固相接枝法的更新與改進。
  17. For example, the jump points that 8 years converging upon 1 year are in 1958, 1970, 1981 and 1998

    存在不同尺度周期的突變,如8a尺度到1a尺度的突變位置為1958 、 1970 、 1981 、 1998年。
  18. Clre also used a special strategy to tracing the ray that decreases the variant of monte carlo technology. at the prophase, clre introduced some ideas based on signal processing to benefit the raytracing fragment ’ s quality and performance

    Clre使用基於montecarlo積分技術的并行式光線追蹤作為其核心渲染演算法,通過結光線追蹤演算法和射度演算法的優,達到了較高的渲染質量。
  19. According to the occurrence and maintenance of torrential rain relating closely to moisture convergence increment in low layer of troposphere, a new type of divergence equation is applied to analyse physical mechanics of the maintenance of torrential rain process in the east of sichuan basin from 2 to 6 july, 1989

    摘要根據暴雨發生和持續依賴于對流層低層水汽的事實,重針對持續性暴雨維持機制這一重要問題,從天氣學和動力學方面分析了1989年7月9 ~ 10日四川盆地東部持續性暴雨維持機制。
  20. X - ray collimator subsystem is the important part of x - ray machine, and its main function is confine the scope of x - ray beam, to reduce the radiation harm to patients ; another function is realizing the multi - scope exposure on one film working with the film motion and shielding system

    X光機限束器子系統作為x光機的重要組成部分,其主要用於對x光束的照射范圍進行限定,以減少對患者的射,以及配片系統實現對x光膠片的多分片功能。
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