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three-effect
相关语句
  三效
     Study on the Preparation of Modified Cu - Mn - Ce - O three - effect Catalysts and Their Properties
     改性Cu-Mn-Ce-O三效催化剂的制备及其性能研究
短句来源
     In this paper, modified three - effect Catalysts (TWC) with K、Fe、TiO2 and Pd were prepared on the basis of preparation of Cu - Mn - Ce - catalyst.
     在制备Cu-Mn-Ce-O三效催化剂的基础上制备出了搀杂K、Pe、TiO_2和Pd的三效催化剂;
短句来源
     The problems of high energy consuming,equipment corrosion,and ammonia chloride sublimation were solved through three-effect mixed-flow falling film vacuum evaporation technology.
     分析了含氯化铵工业废水蒸发回收过程中的技术难点,确定了回收的工艺流程,采用三效错流降膜真空蒸发工艺,有效地解决了能耗过高、设备腐蚀严重、氯化铵升华等技术难题。
短句来源
     Problems existing in the automatic control system of three-effect downstream evaporator and methods to solve them are discussed.
     阐述了三效顺流蒸发自动控制系统存在的问题及解决方法
短句来源
     The technological design of three-effect four-compartment evaporation facilities for the production of 100 kt/a caustic soda
     10万t/a烧碱三效四体蒸发装置的工艺设计
短句来源
更多       
  “three-effect”译为未确定词的双语例句
     Analysis on the reasons for the faults of the first-effect heating chamber of three-effect downstream evaporator
     三顺Ⅰ效蒸发器加热室故障原因剖析
短句来源
     A practical mathematical model for three-effect evaporating systembased on the mechanism analysis of the solvent recovery system in the ketone-benzol dawaxing process is presented in this paper.
     本文从酮苯脱蜡溶剂回收系统机理分析出发 ,建立了三级蒸发系统的实用机理模型。
短句来源
     Based on the three-effect caustic soda evaporation process, the soft-sensing model of the solution concentration and its application are briefly introduced.
     针对效顺流烧碱蒸发过程,主要介绍了烧碱连续出料浓度的软测量模型的建立及其在实际烧碱蒸发过程中的应用。
  相似匹配句对
     Three.
     三、多姿多彩的艺术手法
短句来源
     Three.
     三.
短句来源
     The Three-dimension Accuracy
     三维精度
短句来源
     To-and-Fro Three Times
     三去三回
短句来源
     butterfly effect
     蝴蝶效应
短句来源
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The structure of general circulation over the Asia, in the period of Jan. 1st. to Mar. 10th., 1956, is investigated using all available aerological material. It is found that:1.During thus period there existed two jet streams over the continent. This two jets combined into one jet at the meridian 140°E.2.Both jets over Eastern Asia are accelerated downstream. The southern one starts acceleration from the meridian 75°E, while the northern one was not acce 1e rated before reading Ere meridian 100°E.3.The baroclinity...

The structure of general circulation over the Asia, in the period of Jan. 1st. to Mar. 10th., 1956, is investigated using all available aerological material. It is found that:1.During thus period there existed two jet streams over the continent. This two jets combined into one jet at the meridian 140°E.2.Both jets over Eastern Asia are accelerated downstream. The southern one starts acceleration from the meridian 75°E, while the northern one was not acce 1e rated before reading Ere meridian 100°E.3.The baroclinity of the atmosphere over Eastern Asia is mainly concentrated in the vicinity of the Tibetan Plateau.It is considered that the existence of the Tibetan Plateau has the following three effects on the general circulation:1.The existence of the plateau intensifies the baroclinity (along the N-S as well as W-E directions) around the plateau, south of which a vertical circulationis formed.2.The confluence of the two jets, thus also the acceleration of them, is due to the existence of the plateau.3.The existence of plateau makes the southern jet intensified and steady.

根据1956年1月到3月上旬亚洲地区高空资料,对亚洲大陆上空的大气环流进行了探讨。作者得出了下列的事实: 1)在上述时间期限内的平均情况表明,亚洲大陆上空存在着二支急流。这二支急流在东经140°经度上已经汇合。 2)二支急流在东亚部分都表现有向东加速的现象。南支急流自东经75°就开始明显地向东加速。而北支急流的加速自东经100°附近才开始。 3)东亚大陆上大气的斜压性主要是集中在高原的附近。 另外对上述现象也作了一些初步的研究。作者认为西藏高原的存在对大气环流有下列三方面的影响: 1)高原加强了大气的斜压性,并且在高原南方形成垂直环流。因而强烈的加速了南支急流。 2)高原的存在使得南北二支急流在其东侧互相接近,显然地影响了急流的加速。 3)高原保证了南支急流强大而且稳定,这就是说每天每年同季的变化都小。

Many authors have shown that in China, the contribution due to surface friction to the height tendency of an isobaric surface is of the same order of magnitude as those of the large-scale topographic influences and that under some special weather situations, the non-adiabatic heating is non-negligible to the height tendency even if in short-range forecasting. By taking into consideration of above mentioned three effects, a two-parameter baroclinic model suitable for numerical weather prediction is derived from...

Many authors have shown that in China, the contribution due to surface friction to the height tendency of an isobaric surface is of the same order of magnitude as those of the large-scale topographic influences and that under some special weather situations, the non-adiabatic heating is non-negligible to the height tendency even if in short-range forecasting. By taking into consideration of above mentioned three effects, a two-parameter baroclinic model suitable for numerical weather prediction is derived from the combination of hydrodynamic and thermodynamic equations. The solutions of the system of prognostic equations are given. Then this paper deals with the truncation errors in the numerical weather prediction when a triangular grid-point system is used. Moreover, an optimum smoothing formulas for the field is developed. Finally, the author gives a brief discussion on the problem concerning the development of the large-scale baroclinic disturbances.

根据一些作者得到的結論:在中国地区,地面摩擦对等压面高度傾向的貢献与地形的貢献相同,以及在某些特殊天气形势下,即便是对短期天气預报来說,非絕热因子也是不能被忽略的。作者首先从流体力学与热力学方程出发,提出了一个适用于作数值預报的两参数模式,給出了問題的解答;其次,討論了在使用三角形差分网格时,数值預报的截断誤差問題,并根据試驗給出了一个适宜的場量平滑公式.最后,还扼要地討論了斜压扰动的发展問題。

In this paper, firstly, we briefly summarize the various features of radio jets observed in radio galaxies. These include distributions of radio brightness, magnetic field strength and spectral index along jets; field orientation; oscillation; one-sidedness; flow velocity; thermal electron density, confinement by external medium and so on. "We point particularly out that: (1) the orientation of magnetic field in optical jets or parts of radio jets near their bases close to galactic nuclei is always along the...

In this paper, firstly, we briefly summarize the various features of radio jets observed in radio galaxies. These include distributions of radio brightness, magnetic field strength and spectral index along jets; field orientation; oscillation; one-sidedness; flow velocity; thermal electron density, confinement by external medium and so on. "We point particularly out that: (1) the orientation of magnetic field in optical jets or parts of radio jets near their bases close to galactic nuclei is always along the axis of jets, and ithis may be important for understanding the jet-phenomena; (2) the re-acceleration of relativistie electrons is needed to interpret the distributions of radio brightness and spectral index along radio jets.Secondly, "We discuss the process of reaeceleration for some jets in low-luminosity radio galaxies (3C31, NGC6251; 3C449 and NGC315). We assume that three effects are to be considered; lateral expansion (adiabatic loss), synchrotron radiation loss and Fermi-type acceleration. These are expressed by equations (1)-(3).The energy-spectrum of relativistic electrons in unit length along jets is given by equations (5) and (6), in which ET is the break-energy due to synchrotron losses. Then the distribution of radio brightness along jets is given by equations (7), (8), (9) and (10), where r is the radius of jets, Vexp——speed of lateral expansion, a(r)——reacceleration coefficient. "We assume that a(r)∝r-n and H∝r-8. (n and δ are constants).Table 1 gives the various parameters obtained from observations for 3C31, NGC6251, 3C449 and NGC315, which we use to calculate the reacceleration coefficients needed for interpreting the distributions of radio brightness along the jets. For each jet we choose one interval of distance (l0, l) from its nucleus: 6-29 kpc (3C31), 20-150kpc (NGC 6251), 5-30 kpc (3C449) and 200-400 kpc (NGC315). The reacceleration coefficients derived are 6.10-14 sec-1 (at l0=6kpc for 3C31), 3.10-14 sec-1 (at l0=20kpc and 5kpc for NGC6251 and 3C449), 4.10-16 sec-1 (at l0=200kpc for NGC315). These are shown in table 1. They are comparable with those found in the tails of head-tail soures. (a≈10-15 sec-1). Using these reacceleration coeffients we calculate the break-frequencis for the jets (with equation (12)), which are higher than about 3-5 GHz and this is consistent with the observed spectra having no spectral steepening at frequency less than about 5 GHz.Finally, we discuss the possibility of MHD turbulence providing the reacceleration. MHD turbulence might be generated by instabilities such as Kelvin-Helmhotz instability at the boundary of jets or by internal shock waves. The acceleration coefficient provided by MHD turbulence can be estimated with equation (13). The results show that MHD turbulence can provide the needed reacceleration, but the energy spectrum index of the MHD turbulence would be severely restricted in a very narrow range of v-1.6-1.7.

根据几个低光度射电星系中的射电喷流的观测特性及内部物理条件,讨论了相对论电子的再加速,假定加速机制为费米型,我们得到射电喷流内的加速系数为~10~(-15)秒~(-1),从而可以较好地解释喷流的射电亮度分布和频谱特性。进一步讨论了磁流体力学湍流提供加速的可能性,并表明湍流的能谱指数应限制在窄的范围内(v~1.6—1.7)。

 
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