等密度流 的英文怎麼說

中文拼音 [děngliú]
等密度流 英文
homopycnal flow
  • : Ⅰ量詞1 (等級) class; grade; rank 2 (種; 類) kind; sort; type Ⅱ形容詞(程度或數量上相同) equa...
  • : Ⅰ名詞1 (秘密) secret 2 [紡織] (密度) density 3 (姓氏) a surname Ⅱ形容詞1 (距離近; 空隙小)...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
  1. Charles has presented an analysis of the concentric flow of long cylindrical capsules carried in an equidensity liquid in laminar motion.

    查爾斯已對載運于液體中,以層運動的長圓柱形包囊的同心動提出了分析。
  2. The effects of main process factors such as feeding mode, reaction ph values, and ratio of ammonia and nickel ion, reaction time, agitation, reaction temperature and aging et al on the crystallization course and physical properties of nickel hydroxide were studied in detail. at last, we acquired the optimal preparation parameters, the spherical nickel hydroxide with high tap density and crystalloid degree, perfect flow ability were prepared

    在研究加料方式,氨水的加入量,反應時間、體系ph值、反應溫、攪拌、陳化主要工藝條件對ni ( oh ) _ 2結晶過程和物理性能影響的基礎上,確定了較優的工藝參數,制備出了堆積和結晶緻較高、動性較好的球形ni ( oh ) _ 2 。
  3. Tunneling process is important in the low to moderate current density range.

    在中及中以下電下,隧道穿透過程是重要的。
  4. 1. the composition and current efficiency of ni - w - b electrodeposit in the bath containing ammonium citrate as complexing agent were related to the deposition current density and bath composition

    在以檸檬酸銨為絡合劑的鍍液中, ni - w - b合金電沉積層的組成和沉積電效率與沉積電及鍍液的組成有關。
  5. The relationship between capacitance and corrosion conditions in the enlargement of tunnels justifies the latter competition mechanism the varied etching conditions were implemented by enhancing the passivating characteristics and viscosity, changing the a13 + concentration, temperature of etchants and current pulsation. passivating acid in the etchant is conducive to the instant passivation of exposed areas on the foil surface, and hence sustains the balance of competition between aggressive anions and passivators, providing pit nucleatiori sites continuously

    通過侵蝕液中添加草酸、硫酸、乙二醇,改變侵蝕液al ~ ( 3 + )濃和電紋波方法,研究了不同的侵蝕條件對隧道孔形貌和比容的影響,結果表明:草酸和硫酸既保護了鋁箔表面又促進了隧道孔孔壁的迅速鈍化,增加發孔
  6. The studies of plane heterogeneity are as follows : the text counts the parameters of the sandlayers " geometric shape of different sedimentous microfacies ; speculates the conditions of lateral communication by sandstone density according to the method brought forward by j. r. l. allen ; gets a group of parameters including the reservoir thickness, porosity and coefficient of permeability by using kriging method according to the data of logging results ; makes certain the direction of coefficient of permeability with variation function by modeling globosity function ; divides the sandlayers into five types by using the method of flowing cell based on three parameters, that is x h, kxh and h / h, and accounts the favorable region. on the base of above - mentioned studies, the text evaluates the heterogeneity of sandlayers and gives the resolutions to these problems to serve the development of the field

    Allen )人提出的統計方法,用垂向上砂體的界限來推測砂體側向連通情況;根據每口井的測井解釋資料,利用克里金插值法對外間進行插值,得到了一組反映儲層特徵在平面上變化的參數,包括儲層厚分佈、孔隙以及滲透率,並且成圖;利用變差函數法,通過球狀函數模擬,確定儲層優勢滲透率方向:根據動單元法,以儲能系數、容積系數以及凈毛厚比三個參數為依據,通過聚類分析方法進行動單元劃分,並且按照參數特徵將其分為五類,統計各砂層有利動單元區塊。
  7. The high - power semiconductor quantum well ( qw ) laser is a kind of luminescence device with superior performance, it has longe - lived, low threshold current density, high efficiency, high luminosity and excellent monochromatic, coherence, directionality, etc. the high - power semiconductor laser is widely applied to the fields, such as military, industrial machining, communication, information processing, medical treatment, etc. the material ' s epitaxy is the foundation of the whole laser ' s fabricating, and it has important influence on the optics and electricity performance about the laser

    大功率半導體量子阱激光器是一種性能優越的發光器件,具有壽命長、閾值電低、效率高、亮高以及良好的單色性、相干性、方向性特點,廣泛應用於軍事、工業加工、通信及信息處理、醫療保健領域。材料的外延生長是整個激光器器件製作的基礎,對器件的光學和電學性能有著重要的影響,生長不出優質的材料體系,獲得高性能的器件就無從談起,因此,材料的外延生長便成為了整個半導體激光器製作過程之中的重中之重。
  8. ( 2 ) this paper has firstly identified these genetic units on shore beach - shore face, longshore zone, longshore sands, erosional channel, leveed channel, turbidite lobes, turbidite sheet, slump, debris flow, density - modified grain flow etc ; at the same time, and points out that the lake of cretaceous is open - type fresh water lake

    ( 2 )首次系統確定濱灘-濱面、沿岸帶、沿岸沙壩、侵蝕水道、有堤水道、濁積葉狀體、席狀濁積、滑塌體、碎屑改正顆粒成因單元。同時指出白堊紀湖泊為開放型淡水湖。
  9. In this paper, we focus on the following three topics : ( i ) density distribution of dusty plasma in the low - pressure collisionless positive column the radial density distributions of electron, ion and dust particle in the low - pressure collisionless positive column are investigated with a fluid theory and a self - consistent dust - charging model

    本文著重以下三個方面的研究: ( )低氣壓無碰撞輝光放電正柱區塵埃離子體徑向分佈本文採用體模型和自洽的塵埃充電模型,研究了低氣壓無碰撞輝光放電正柱區的電子、離子和塵埃粒子的徑向分佈。
  10. Space charge properties of frp rod materials are influenced by temperature, field strength and high voltage application duration

    結果表明,在高壓直電場作用下,芯棒材料內部積累的空間電荷的極性和受到溫、電場強和電場作用時間因素的影響。
  11. At the same time we study, analysis and discuss the action that non - linearity - stickiness - springiness and crazing damage of the pmma sample under creep though making us of the knowledge about the high molecule physics the damage theory of material of rheology of bodies with defects. through the study and theory analysis of single - axes stretching experiment in pmma sample under creep, take the surface crazing damage density of pmma sample as an variable, to look for a commonly rule that the crazing damage of pmma, and to offer a feasible damage model for the sake of study that of pmma ' s remoteness damage

    同時運用高分子物理、含缺陷變性物體的材料破壞理論知識,對無孔洞pmma試件和有孔洞pmma試件蠕變條件下非線性粘彈性行為及其銀紋損傷現象進行了研究、分析與探討,通過對蠕變條件下的pmma試件的單軸拉伸實驗研究和理論分析,以pmma試件的銀紋損傷面值為損傷變量,來嘗試尋求pmma銀紋損傷的一般規律,為研究pmma的細觀損傷提供了一種可行的損傷模型。
  12. Value, and the current density and intensity versus the substorm phases. moreover, the characteristics of substorm current wedge are given special attention. it is found that the density and intensity of facs reach their peak during the expansion phase, the onset of the expansion phase is triggered when imf is changed to southward from northward or the southward imf decreases, and the positions of onset are most likely to be at the edge of plasma sheet near the earth

    值分佈以及場向電隨亞暴位相的變化,並著重分析了亞暴電楔的特徵。結果表明,亞暴膨脹相的場向電都達到極大值亞暴的膨脹相是由行星際磁場轉向或南向分量變小觸發的,其起始位置很可能位於近地離子體片內邊緣。
  13. The forecast method of formation compression the principle of forecast method is based on increasing of formation compression along with burial depth. the used parameters include velocity, density, porosity, and fluid content etc. in fact, the factor influence formation compression is very complex

    4地層壓力預測方法地層壓力預測方法的基本原理建立在地層壓力隨埋深增加而增加的基礎上,所用的參數主要有巖層速、孔隙體含量或與之有關的參數
  14. In particular, the occupants satisfaction with the internal environment of their homes, which includes corridor lighting, ventilation of apartments, temperature, crowdedness and other factors, affects their psychological well - being because their satisfaction in part because dwelling environments reflection on their self - worth

    此外,長者對室內居住環境的滿足感例如:走廊光線空氣通室內溫或居住都能影響他們的心理健康。因為長者對室內居住環境的滿足感,往往能夠直接反映出他們的自我價值。
  15. The flow characteristics, distributions of current density and chemical components, and the performance of these two different designs are calculated and compared. the flow and mass transport characteristics are analyzed in detail, which indicate that strong forced convection is produced in the interdigitated flow field, which consist of dead - end gas channel that force the gases through the porous electrodes. results of comparison show that forced convection induced by the interdigitated flow field in the diffusion layer effectively enhances mass transport of reactants and products, thus leading to a higher cell performance and the limiting current density

    在傳統道設計的pemfc中,反應物從道到催化層的供應和生成物從催化層到道的排出主要是以擴散為主,而在交叉梳狀道設計中,以動帶動的對傳遞則占據了主導地位,而且這種以對為主的傳遞機理大大提高了反應物和產物傳遞速率,從而有效地改善了電池的極限電和極化性能特性。
  16. The feasibility that kaufman ion source is applied in reactive ion beam etching is discussed. etching characteristics of materials, including pr, cr, quartz, are investigated. the etch rate and mechanisms of such materials are measured and analyzed as a function of ion energy, ion beam density and ion incidence angle in pure ar and chf3, respectively. the etch rate has shown a square root dependence on variation versus

    深入研究了光刻膠、鉻薄膜、石英光學材料離子束刻蝕特性,分別以ar氣和chf3為工作氣體,研究光刻膠、鉻薄膜、石英的刻蝕速率隨離子能量,束和離子入射角的變化關系,得到刻蝕速率與影響因素的擬合方程,為掩模的製作工藝路線提供了實驗依據和理論指導。
  17. In addition, as hong kong becomes more cosmopolitan, the number of expatriate workers could also increase. to - date, no account is taken of the mobile population in the planning framework. nor do we have a good understanding of the background ( e. g. their age structure ), their travelling pattern ( e. g

    現時,我們仍未完全掌握如何規劃動人口這個因素;事實上,我們對動人口的資料,包括其背景(如年齡分佈) 、往來兩地的習慣(如出入境的頻)及其對本港設施的期望,所知亦屬有限。
  18. In order to solve this contradiction, reservoir engineering methods are used to estimate the exploitation process about the block, which including water drive curve method, the correlation experience method, the method of the flow pipe budgetary estimate and the method of well net density. on the basis of these method, the author studied the macrocospical distributing of remaining oil in each layer

    針對單元開發過程中存在的突出矛盾,運用水驅曲線法、相關經驗公式法、管概演算法、合理井網油藏工程方法對斷塊的開發歷程進行評價,在此基礎上進行各小層剩餘油的宏觀研究。
  19. Water dielectric pulse power modulator has been widely applied because of its merits of high energy storage density, compactness, and capability to drive low impedance high power microwave sources. research for multi - pulse operation of high power spark gap switch with high current and comprehending its physical properties are the basis to study multi - pulse operation or repetitive operation of water dielectric pulse power modulator

    水介質脈沖功率調制器具有儲能高,結構緊湊、與低阻抗微波源較好匹配的特點,因此得到廣泛的應用,但是受到高功率、大電氣體開關的絕緣恢復的影響,水介質低阻抗脈沖功率調制器的重復頻率運行或多脈沖運行受到較大的限制。
  20. The topographic feature is one of the main factors that influence the process of soil erosion and sediment yield of small watershed. the quantitative parameters of small watershed topographic feature are average watershed slope, average slope length, gully density and so on, which are based on the quantitative method of slope character and do not reflect the essential character of the small watershed topographic feature, which are complex

    地貌形態是影響小域侵蝕產沙的主要下墊面因素之一,其量化參數一般繼承坡面地貌特徵量化方法(如坡、坡長因子)而採用平均坡、平均坡長及溝壑參數,這些參數僅是對域地貌形態的概化和單因子表達,沒有真正反映域地貌形態復雜的本質特徵和相互聯系。
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