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equatorial     
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  赤道
     Study on the Typical Characteristics and Application of Clay Sediments from the Northern Equatorial Pacific
     赤道北太平洋粘土沉积物的标型特征及其应用研究
短句来源
     Analytic Solution Computation for Boussinesq Approximate and Equatorial Beta-plane Approximate Type Equations
     Boussinesq近似与赤道Beta-平面近似类方程组的解析解计算
短句来源
     THE EFFECT OF THE THERMAL STATE OF EQUATORIAL EASTERN PACIFIC ON THE FREQUENCY OF TYPHOONS OVER WESTERN PACIFIC
     赤道东太平洋热力状况对西太平洋台风发生频率的影响
短句来源
     Determining the Absolute Parameters of the Meridian Circle By Observing the Prime Vertical Ⅱ, The Absolute Determination of the Equatorial Point "of the Graduated Citcle
     卯酉圈观测测定子午环的绝对参数(Ⅱ)——绝对测定度盘的赤道
短句来源
     A Method of Precisely Adjusting the Polar Axis of an Equatorial Radio Telescope
     一种赤道式射电望远镜极轴的精密校准方法
短句来源
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  赤道的
     The fluc-tuation in cross--equatorial moisture transport related to Somali Jetexerts an influence on the summer monsoon precipitation over SouthChina via the propagation of the 40--50 day perturbation, the time lagbeing about 10--12 days.
     与索马里急流相联系的穿越赤道的水汽输送的变化通过40—50天周期扰动的传播对中国夏季季风降水发生影响,其时间落后为10—12天。
短句来源
     The results suggest that the asymmetry of TIWs in the Atlantic and Pacific Oceans is likely due to the asymmetry about the equator of the two branches of the South Equatorial Current and of the sea-surface-temperature front, but not to the presence of the North Equatorial Countercurrent.
     结果表明,在大西洋和太平洋上热带非稳定波(TIWs)的不对称性似是由于南赤道流的两个分支和海面温度锋面对于赤道的不对称性,而不是由于北赤道逆流的出现。
短句来源
     The author also analyses the background of unique regional characteristic,and designates that equatorial geography position,special geology structure,deep_rooted religious culture are key factors unique tourist resources.
     作者还分析了东南亚独特景观的形成背景,认为地跨赤道的地理位置,特殊的地质构造,根深蒂固的宗教文化,是形成该区域旅游资源特色的重要因素
短句来源
  赤道仪
     The embedded system design is adopted to drive the equatorial, and the hardware and software designs of the Philips' P89C51RD2-based system and SAMSUNG'S S3C44B0X-based system are finished, so that the system can automatically go to and trace the object star.
     本课题采用嵌入式设计方法驱动赤道仪,分别以飞利浦P89C51RD2和三星的S3C44B0X为主控芯片,自行完成硬件电路的设计和片内以及PC软件的设计,精确实现自动寻星和自动跟踪功能。
短句来源
     In the paper,we have identified,in 17 high resolution white light pictures of 10 different sunspots,taken in 1980 with the photographic mount of the 200mm equatorial telescope at the purple Mountain Observatory,measured,computed and analysed 30 umbral dots.
     本文利用紫金山天文台太阳室200mm赤道仪的照相装置1980年所观测到的10个不同的太阳黑子的17张高分辨率的白光照片,我们辨认了30个本影点,并对它们进行测量,计算及分析。
短句来源
     On the basis of astronomy, an MCU-based and an ARM-based automatic starfinder system for equatorial are designed.
     本课题根据天文学理论,分别设计了基于8位单片机和基于16位ARM的赤道仪自动寻星系统。
短句来源
     This paper reports visual micrometer measures of 82 pairs carried out by the authors with Zo-Se equatorial 40/714 cm of Shanghai Observatory during the period 1964. 24-1964. 98. The micrometer mounted on the observatory's 40cm refractor has a scale of 29.9 aroseo/mm;
     利用佘山40/714厘米赤道仪的动丝测微器,于1964.24-1964.98年间,在72个夜晚测得目视双星82对. 测微器安装在具有比例尺为29″.
短句来源
  赤道装置
     On the basis of phenomenalized analysis a algorithm for reciprocatedcalculation of apparent resistivities in several EM methods-the source-effect correction algorithm was given(the 2 - D apparent resistivity of TE mode in MTS and the 2 - Dimpedance apparent resistivity of equatorial equipment in ILS and FEM).
     在唯象分析的基础上,提出了几种电磁测深法阻抗视电阻率的相互换算法──源效应校正法(大地电磁测深二维TE极化视电阻率和其它两种电磁法的赤道装置二维阻抗视电阻车)。
短句来源
     On the basis of the theory and method of rapid inversion in MTS, the two dimensional inverse problem of impedane apparent resistivity in frequency EM sounding with electrical dipole source (equatorial equipment) was studied.
     本文在大地电磁测深松弛(rapid)反演理论方法的基础上,探讨了电偶源频率电磁测深(赤道装置)阻抗视电阻率的二维反演问题。
短句来源
     To study the feasibility of ocean bottom transient electromagnetic method (OBTEM), a group of three-dimensional models of anomalous body beneath sea floor are designed and electromagnetic responses are calculated for various parameters and for equatorial and axial configuration by using integral equation algorithm. The features of anomalies for different ocean depth and different source-receiver offset are examined through simulated results.
     为了研究海底瞬变电磁测深的可行性,根据海底电磁方法的观测特点,设计了一组三维异常体模型,采用积分方程算法计算了不同模型参数时赤道装置和轴向装置的瞬变电磁响应,模拟了不同海水深度、不同偏移距对异常的影响。
短句来源

 

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      equatorial
    The chondroitin-sulfate microenvironment made the enzyme resistant to heparin inhibition because the equatorial orientation of the OH groups is similar to that in hyaluronic acid.
          
    Near-Equatorial Electrons as Measured onboard the MirSpace Station
          
    Some results of studying the electrons with energies of tens to hundreds of keV at the low and near- equatorial geomagnetic latitudes by using the instruments Sprut-V and Ryabina-2 onboard the Mirspace station in 1991 are presented.
          
    The most intense electron fluxes are observed at the lower edge of the near-equatorial boundary of the inner radiation belt on longitudes of the South Atlantic Anomaly between 14 and 20 h MLT.
          
    The motion of a spherically symmetric balloon satellite near the equatorial plane is considered.
          
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    This is a brief report of a preliminary survey of certain rain-bearing systems over China in later spring and summer. In the first part, a general description of the methods of analysis used in this survey is given. As the temperature and wind fields are weak, and the precipitation is heavy, smaller intervals for the isotherms and contours in the constant pressure surface and pseudo-equivalent potential instead of potential temperature in the cross section analysis are used.In the second part, there are descriptions...

    This is a brief report of a preliminary survey of certain rain-bearing systems over China in later spring and summer. In the first part, a general description of the methods of analysis used in this survey is given. As the temperature and wind fields are weak, and the precipitation is heavy, smaller intervals for the isotherms and contours in the constant pressure surface and pseudo-equivalent potential instead of potential temperature in the cross section analysis are used.In the second part, there are descriptions of the structure and development of five frequently observed rain-bearing systems i.e. cold front, blocking high and cold vortex, monsoon heat low, warm front and typhoon.The last part consists of discussions of some points of view in synoptic meteorology in China. It is stated that the monsoon precipitation is various in intensity and duration according the large-scale flow patterns. The difference of moisture content in the middle troposphere as a criterion for the identification of equatorial or tropical maritime air mass is proved to be missleading. It is shown that the upper air moist content is high only within the raining region near the polar or equatorial front. To the south of the equatorial front within the so-called equatorial air mass, the moist content in the middle troposphere is as low as within the tropical maritime air mass. It is the convergence and lifting of the tropical air mass which releases the convective instability and induces the surface moist air rising to the middle troposphere. The phenomenon of the forward-inclination of the so-called North-West Trough based on the time cross-section of wind is proved to be a mistake by combining two systems into one trough. The terminology of shear line, and the correct application of synoptic models in weather analysis and forecas-ting are also discussed.

    本文是一年来从事夏季降水天气初步普查的简单报告。第一节首先指出所用分析方法与一般国内所通用者,稍有不同。高空等压面分析,取20米作为等高缐间隔,2℃作为等温缐间隔。代替40米及5℃的间隔,以适应夏半年较弱的温度场与气压形势场,在剖面分析中以等假相当位温缐代替位温缐,与等温缐配合以适应降水天气的凝结降水过程。 第二节讨论了五种夏半年基本降水天气系统,即冷锋、阻塞高压与冷涡、季风热低压、 暖锋及有风的结构,并简单地叙述了演变过程。 第三节对某些天气概念提供一些批判性的讨论。根据现已增加的观测材料,论证季风与梅雨是多样性的,决定于大规模的温度场与流场特性,以高空湿度大小区分赤道气团与热带海洋气团,证明是不适当的,因为中国赤道锋降水区域以南,即在所谓南南季风的赤道气团中,中层大气仍是干燥的。降水区域内,中层对流层的大量水份,是由于辐合或抬升的作用,使潜势的对流不稳定性成为现实的不稳定性,而由下层空气上升带上去的。文中还论证了所谓西北槽槽缐前倾是将两个系统混作—个系统的不正确桔果。最后还讨论了切交缐及一般模型在天气分析预报中的应用与限制。

    Utilizing the latitudinal mean ot upper meridional wind of 1950 given by Buch and Starr and White, mean meridional circulation has been studied. Fig. 1-3 (fig. 1 for whole year, fig. 2 for winter, fig. 3 for summer) reveal three cells: two direct cells in low and high latitudes respectively and one indirect cell in middle latitudes. The average jet stream of 1950 is situated in the middle cell. The yearly average equatorial convergence zone is at about 5°N. From winter to summer all the three cells shift...

    Utilizing the latitudinal mean ot upper meridional wind of 1950 given by Buch and Starr and White, mean meridional circulation has been studied. Fig. 1-3 (fig. 1 for whole year, fig. 2 for winter, fig. 3 for summer) reveal three cells: two direct cells in low and high latitudes respectively and one indirect cell in middle latitudes. The average jet stream of 1950 is situated in the middle cell. The yearly average equatorial convergence zone is at about 5°N. From winter to summer all the three cells shift northward. The Hadley cell of winter hemisphere extends to summer hemisphere. The intensity of these cells seems to be stronger in winter than in summer.Angular momentum balance for the latitudes 10°N-70°N for the year 1950 was also studied, and figure for stream lines for the transfer of angular momentum was constructed (fig. 5). The most interesting feature in this figure is that through the surface separating easterlies and westerlies the stream lines are vertical. Thus it indicates that the angular momentum generated in the easterlies is transported to the westerlies not in horizontal direction, but transported to upper westerlies in low latitudes by vertical motion. Then from there it is tiansfer-ed to middle latitudes. The mechanism of such transfer is as follows: In Hadley cell the upward motion in equatorial region and southern tropics carries more angular momentum due to earth's rotation, while the downward motion in northern tropics and subtropics carries less angular momentum due to earth's rotation. Thus in the mean angular momentum generated in easterlies is transported to upper levels.Finally the mechanism of maintenance of zonal circulation was discussed. The conclusion is this: In middle arid high latitudes gross disturbances are of primary importance while in low latitudes mean meridional circulation is important in maintaining zonal circulation.

    本文利用了Buch和Starr与White所计算的1950年各纬度上空的平均经向风速([V]),绘制了子午面上的平均环流(全年:图1,冬季:图2,夏季:图3),图中显示出三个环型(cell),低纬度和高纬度的两个正环型与中纬度的逆环型。 1950年平均西风急流的位置正好处于中纬度的逆环流之中。全年平均的赤道辐合线位于北纬5°左右。自夏至冬三个环型均向北移,冬季半球Hadley环型伸向夏季半球去。三个环型的强度都是冬季大。 对于1950年北半球10°—70°的角动量平衡也作了分析(图4),并绘制了这个空间中角动量输送流线图(图5),其中应该提出,就是通过东西风的界面流线是铅直的,也就是总的来说,在东风带里产生的角动量不是在水平方向上输送到西风带里去,而是在铅直方向上输送到低纬度的高空西风里去,再由那里在水平方向上送到中高纬度去。 最后对于平均纬圈环流的维持也作了讨论,结论是:在中高纬度大型扰动起着主导作用,在低纬度则平均经圈环流是重要的。

    The crystal structure of sodium tetraselenite has a monoclinic unit cell with a=5.90A, b=4.82A, c=10.19A, β = 91°20', which contains 2 {NaH3(SeO2)2}. The space group is Gs2-Pn.The equatorial Weissenberg photograph h0l indicates that the projection of the structure onto the plane (010) has a pseudo plane group p6m and a pseudo unit cell with a' = 5.94A, b'=5.90A, r' = 119°50'. The pseudo plane group helped to fix the selenium and sodium atoms in the projection (Figure 1) and the Patterson projectionP(v,...

    The crystal structure of sodium tetraselenite has a monoclinic unit cell with a=5.90A, b=4.82A, c=10.19A, β = 91°20', which contains 2 {NaH3(SeO2)2}. The space group is Gs2-Pn.The equatorial Weissenberg photograph h0l indicates that the projection of the structure onto the plane (010) has a pseudo plane group p6m and a pseudo unit cell with a' = 5.94A, b'=5.90A, r' = 119°50'. The pseudo plane group helped to fix the selenium and sodium atoms in the projection (Figure 1) and the Patterson projectionP(v, w) gave the values of their y coordinates. Then, the selenium and sodium atomswere seen to be distributed according to the space group C2h5 - P21/m. The oxygenatoms were located by a modified Fourier method. The Fourier projections p(x,z) and p(y, 2) (Figure 2 and 3) confirm the structure (Table 2 and Figure 4) satisfactorily.The pyramidal molecule SeO(OH)2 and ion [SeO2(OH)]- in the crystal correspond to the symmetrical structure formulaerespectively, where Se-OH = 1.75-1.82A and Se = O = 1.66-1.69A (Figure 5). The molecules SeO(OH)2 and ions [SeO2(OH)]- are linked through the hydrogen bonds O-H…O = 2.46-2.83A to form infinite chains of composition H3(SeO3)2 (Figure 6) and these chains are held together laterally by the sodium ions between them. The sodium ions are coordinated octahedrally by oxygen atoms (Figure 7).

    单斜晶体NaH_3(SeO_3)_2的晶胞参数为α=5.90(?),b=4.82(?),c=10.19(?),β=91°20′。晶胞中含有2{NaH_3(SeO_3)_2}。密度的计算值和观测值各为3.22_4和3.21±0.01克/厘米~3。根据系统消光,晶体结构中存在着滑移面n。最后根据全部原子的坐标值肯定晶体的空间群为C_3~2—Pn。 根据Weissenberg图hOl上各衍射点的分布情况,可为结构在(010)面上的投影引出一个a′=5.94(?),b′=5.90(?),γ′=119°50′的假六方单位,投影的假二维空间群为p6m。假六方单位的a′=1/2(c-α),b′=α如图1中所示。Patterson投影P(u,w)肯定了图1中Se和Na原子的x,z坐标,而P(v,w)给出了它们的y坐标。从这些坐标值看来,晶体中的Se和Na原子系按空间群C_(2h)~5-P2_1/n分布。依靠上述重原子的坐标值并按空间群C_2h~5计算了电子密度分布函数ρ(x,z)和ρ(y,z)。计算结果指出,晶胞中的O原子系按空间群C_3~2分布。最后按空间群C_3~2对上述电子密度分布函数逐步进行修改,使O原子有了明确的表...

    单斜晶体NaH_3(SeO_3)_2的晶胞参数为α=5.90(?),b=4.82(?),c=10.19(?),β=91°20′。晶胞中含有2{NaH_3(SeO_3)_2}。密度的计算值和观测值各为3.22_4和3.21±0.01克/厘米~3。根据系统消光,晶体结构中存在着滑移面n。最后根据全部原子的坐标值肯定晶体的空间群为C_3~2—Pn。 根据Weissenberg图hOl上各衍射点的分布情况,可为结构在(010)面上的投影引出一个a′=5.94(?),b′=5.90(?),γ′=119°50′的假六方单位,投影的假二维空间群为p6m。假六方单位的a′=1/2(c-α),b′=α如图1中所示。Patterson投影P(u,w)肯定了图1中Se和Na原子的x,z坐标,而P(v,w)给出了它们的y坐标。从这些坐标值看来,晶体中的Se和Na原子系按空间群C_(2h)~5-P2_1/n分布。依靠上述重原子的坐标值并按空间群C_2h~5计算了电子密度分布函数ρ(x,z)和ρ(y,z)。计算结果指出,晶胞中的O原子系按空间群C_3~2分布。最后按空间群C_3~2对上述电子密度分布函数逐步进行修改,使O原子有了明确的表现,并取得了图2和图3中的结果。晶胞中各原子的坐标值按空间群C_3~2列于表2中。晶体结构示出于图4中。 晶体中三角锥形的分子SeO(OH)_2和离子[SeO_2(OH)]各相当于对称结构式 其中Se—OH=1.75—1.82(?),Se=O=1.66—1.69(?)(图5)。分子SeO(OH)_2和离子[SeO_2(

     
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