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  唯一
     Make Technological Progress Become the only way tO the Realization of Enterprises' Greatest Benefit
     使技术进步成为企业实现利益最大化的唯一途径——企业技术进步机制的目标模式与发育政策
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     Reducing Cost--the only Wayout for Renault to Suppress Sluggish Recession
     雷诺经营业绩下滑 降低成本是唯一出路
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     The MRQP software is presently the only software in China that uses the mineral resources quantitative prediction method, is independent of the DOS environment, does not rely on other softwares such as MapGIS and ArcInfo and runs under the WINDOWS platform directly.
     MRQP软件是目前国内唯一使用数量化理论等进行矿产资源定量预测的方法,脱离DOS环境,不依赖于MAPGIS、ARCINFO等软件的二次开发,在Windows平台下直接运行的软件。
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     There are some factors affecting the posterolateral puncture approach to L_5S_1 disc, the iliac crest is not the only factor.
     影响L5S1椎间盘穿刺的原因是多因素的,髂嵴高度并非唯一因素。
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     At present,operative therapy is still the only method which can heal the carcinoma of the gallbladder(PCG),but only 20%~30% patients can be treated by radical resection.
     手术治疗目前仍然是能够治愈原发性胆囊癌的唯一方法,但仅有20%~30%的患者能够得到根治性切除。
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  “the only”译为未确定词的双语例句
     A Discussion about the Only Index of Relative Stability of Control Systems
     控制系统相对稳定性指标唯一性的探讨
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     The Only Way of Rural Energy Development in China——The Course of Integrated Rural Energy Development By Using the County as the Basic Unit
     中国农村能源建设的必由之路——以县为单元的农村能源综合建设的发展
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     The Only Way into Digital Audio Broadcasting
     声音广播的必由之路──数字声音广播
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     Discussions on the Tellurium Resources as well as the First and the Only Independent Tellurium Ore Deposit in the World
     全球碲矿资源若干问题综述──兼述中国四川石棉县大水沟独立碲矿床的发现
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     Enhancing Technology Reform——the Only Way to Promoting Coordinative Development of Economy and Environment
     加强技术改造是促进经济、环境协调发展的必由之路
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     Only J.
     只有J.
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     G only.
     G单独使用效果并不佳。
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     Only for the Lazy
     新懒人手册
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     ovis only from the milk.
     ovis感染的抵抗力。
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In a much cited article, Yau [5] proved that when the Ricci curvature is bounded uniformly below, then the only bounded solution to the heat equation ?tμ=Δμ on [0, ∞) × M which vanishes at t=0 is the one which vanishes evarywhere.
      
Is this the only one for J1? In this paper all primitive (J1, 2)-arc transitive graphs Γ are given and that AutΓ?J1 is proved.
      
So it is vital to enhance the protection of the only original Metasequoia population in the world and its habitat.
      
The only input of the control system is the STL-formatted 3D CAD model of the pattern.
      
There are other observations, such as the non-linear Fowler-Nordheim plot and multi-peaks field emission energy distribution spectra, indicating that the field enhancement is not the only story in the FE of CNTs.
      
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Fineness modulus (F. M.) has served as an index of fineness of aggregates since it was first introduced by Prof. Duff A. Abrams in 1918. In the concrete mix design, the F. M. of sand governs the sand content and hence the proportions of other ingredients. But there are undesirable features in F. M.: it does not represent the grading of sand and manifests no significant physical concept.Prof. suggested an "average diameter" (d_(cp)) in 1943 as a measure of fineness of sand. In 1944, d_(cp) was adopted in 2781-44...

Fineness modulus (F. M.) has served as an index of fineness of aggregates since it was first introduced by Prof. Duff A. Abrams in 1918. In the concrete mix design, the F. M. of sand governs the sand content and hence the proportions of other ingredients. But there are undesirable features in F. M.: it does not represent the grading of sand and manifests no significant physical concept.Prof. suggested an "average diameter" (d_(cp)) in 1943 as a measure of fineness of sand. In 1944, d_(cp) was adopted in 2781-44 as national standard to specify the fine aggregate for concrete in USSR. It was introduced to China in 1952 and soon becomes popular in all technical literatures concerning concrete aggregates and materials of construction.After careful and thorough investigation from ordinary and special gradings of sand, the equation of d_(cp) appears to be not so sound in principle and the value of d_(cp) computed from this equation is not applicable to engineering practice. The assumption that the initial average diameter (ν) of sand grains between consecutive seives is the arithmetical mean of the openings is not in best logic. The value of an average diameter computed from the total number of grains irrespective of their sizes will depend solely on the fines, because the fines are much more in number than the coarses. Grains in the two coarser grades (larger than 1.2 mm or retained on No. 16 seive) comprising about 2/5 of the whole lot are not duly represented and become null and void in d_(cp) equation. This is why the initiator neglected the last two terms of the equation in his own computation. Furthermore, the value of d_(cp) varies irregularly and even inversely while the sands are progressing from fine to coarse (see Fig. 4).As F. M. is still the only practical and yet the simplest index in controlling fineness of sand, this paper attempts to interpret it with a sound physical concept. By analyzing the F. M. equation (2a) in the form of Table 9, it is discovered that the coefficients (1, 2…6) of the separate fractions (the percentages retained between consecutive seives, a1, a2…a6) are not "size factors" as called by Prof. H. T. Gilkey (see p. 93, reference 4), but are "coarseness coefficients" which indicate the number of seives that each separate fraction can retain on them. The more seives the fraction can retain, the coarser is the fraction. So, it is logical to call it a "coarseness coefficient". The product of separate fraction by its corresponding coarseness coefficient will be the "separate coarseness modulus". The sum of all the separate coarseness moduli is the total "coarseness modulus" (M_c).Similarly, if we compute the total modulus from the coefficients based on number of seives that any fraction can pass instead of retain, we shall arrive at the true "fineness modulus" (M_f).By assuming the initial mean diameter (ν') of sand grains between consecutive seives to be the geometrical mean of the openings instead of the arithmetical mean, a "modular diameter" (d_m), measured in mm (or in micron) is derived as a function of M_c (or F. M.) and can be expressed by a rational formula in a very generalized form (see equation 12). This equation is very instructive and can be stated as a definition of mqdular diameter as following:"The modular diameter (d_m) is the product of the geometrical mean ((d_0×d_(-1))~(1/2) next below the finest seive of the series and the seive ratio (R_s) in power of modulus (M_c)." If we convert the exponential equation into a logarithmic equation with inch as unit, we get equation (11) which coincides with the equation for F. M. suggested by Prof. Abrams in 1918.Modular diameter can be solved graphically in the following way: (1) Draw an "equivalent modular curve" of two grades based on M_c (or F. M.) (see Fig. 6). (2) Along the ordinate between the two grades, find its intersecting point with the modular curve. (3) Read the log scale on the ordinate, thus get the value of the required d_m corresponding to M_c (see Fig. 5).As the modular diameter has a linear dimension with a defin

細度模數用為砂的粗細程度的指標,已有三十餘年的歷史;尤其是在混凝土的配合上,砂的細度模數如有變化,含砂率和加水量也要加以相應的調整,才能維持混凝土的稠度(以陷度代表)不變。但是細度模數有兩大缺點,一個是模數的物理意義不明,另一個是模數不能表示出砂的級配來。蘇聯斯克拉姆塔耶夫教授於1943年提出砂的平均粒徑(d_(cp))來,以為砂的細度指標;雖然平均粒徑仍不包含級配的意義,但是有了比較明確的物理意義,並且可以用毫米來度量,這是一種新的發展。不過砂的細度問題還不能由平均粒徑而得到解决,且平均粒徑計算式中的五項,僅首三項有效,1.2和2.5毫米以上的兩級粗砂在計算式中不生作用,以致影響了它的實用效果。本文對於平均粒徑計算式的創立方法加以追尋和推演,發現其基本假設及物理意義,又設例演算,以考察其變化的規律性;認為細度模數還有其一定的實用價值,不能為平均粒徑所代替。至於補救細度模數缺點的方法,本文試由模數本身中去尋找;將模數的計算式加以理論上的補充後,不但能分析出模數的物理意義,並且還發現模數有細度和粗度之別。根據累計篩餘計算出來的F.M.應稱為“粗度模數”,根據通過量計算出來的才是“細度模數”。假定兩隣篩间的顆粒是...

細度模數用為砂的粗細程度的指標,已有三十餘年的歷史;尤其是在混凝土的配合上,砂的細度模數如有變化,含砂率和加水量也要加以相應的調整,才能維持混凝土的稠度(以陷度代表)不變。但是細度模數有兩大缺點,一個是模數的物理意義不明,另一個是模數不能表示出砂的級配來。蘇聯斯克拉姆塔耶夫教授於1943年提出砂的平均粒徑(d_(cp))來,以為砂的細度指標;雖然平均粒徑仍不包含級配的意義,但是有了比較明確的物理意義,並且可以用毫米來度量,這是一種新的發展。不過砂的細度問題還不能由平均粒徑而得到解决,且平均粒徑計算式中的五項,僅首三項有效,1.2和2.5毫米以上的兩級粗砂在計算式中不生作用,以致影響了它的實用效果。本文對於平均粒徑計算式的創立方法加以追尋和推演,發現其基本假設及物理意義,又設例演算,以考察其變化的規律性;認為細度模數還有其一定的實用價值,不能為平均粒徑所代替。至於補救細度模數缺點的方法,本文試由模數本身中去尋找;將模數的計算式加以理論上的補充後,不但能分析出模數的物理意義,並且還發現模數有細度和粗度之別。根據累計篩餘計算出來的F.M.應稱為“粗度模數”,根據通過量計算出來的才是“細度模數”。假定兩隣篩间的顆粒是兩篩篩孔的幾何平均值,以代替數學平均值(即斯氏平均?

In order to determine flood discharges in rivers without any previous hydrometric record, estimation according to its trace is the only approximation method that is comparatively reliable. The method requires only to find the flood trace, measure its slope and section of flow, estimate the channel roughness, and then substitute these data into hydraulic formulas to calculate the velocity and discharge. Although the results thus obtained may not be accurate, and it is impossible to ascertain the probability...

In order to determine flood discharges in rivers without any previous hydrometric record, estimation according to its trace is the only approximation method that is comparatively reliable. The method requires only to find the flood trace, measure its slope and section of flow, estimate the channel roughness, and then substitute these data into hydraulic formulas to calculate the velocity and discharge. Although the results thus obtained may not be accurate, and it is impossible to ascertain the probability of occurrence corresponding to the flood, nevertheless, the data based upon are direct, and so the errors are low in comparison with those of indirect methods, such as the hydro-meteorological and the analogical, which might even yield radically unreliable results. Besides, in the statistical method of estimating flood flows, this method has been used to supplement those extraordinary flood data not recorded in history and yet valuable for statistics.The current method of estimating flood discharges from its trace assumes the state of steady flow and its velocity formula, from which it is impossible to obtain the maximum discharge that actually happens in the state of unsteady flow, and is only possible to calculate the discharge at maximum water level smaller than the peak discharge. This paper analyzes the shortcomings of the current method and suggests another means of estimating by taking average of the upper and lower limits of the maximum discharge. The error of estimation in the new method will not be over 17% by analysis, which, as compared with the standard of allowable error in hydrometrical survey, is not considerable.

工程設計中,欲在未經水文測驗的河流上定出設計用的洪水流率,依据洪水痕跡估算是唯一此較可靠而近似的方法。这方法只須調查洪水痕跡,測量其坡度及过水断面,估計河槽糙度,就可代入水力学中的公式而算出流速和流率,虽然这样所得的結果未必准确,且無从得知这次洪水相应的概率,但所憑借的资料是直接的,因而誤差的程度此較还小;不象水文气象法从雨量間接推算,或各种此照法依据其他流域的資料間接估計,可能得出很不可靠的結果。在流率資料統計法中,这方法也曆来增补那些历史上未曾测得的特大的可貴的洪水流率資料。 現行从洪水痕跡估算流率的方法假設了水力学中穩定流的流速公式,不能得出实际發生的不定流中的最大流率,而只約略算出那較小的最高水位吋的流率,憑以設計工程是不安全的。本文分析了現行方法的缺点所在,建議另一估算的方法,从最大流率的上下兩極限值取其平均数以估計之。新的方法的沽算誤差,循理推論,不会超过17%;衡以流速仪測量流率的許可誤差标准,並不算大。

The present study was undertaken with one dog, on whose cortex, at the region of the sigmoid gyrus, were imbedded two permanent electrodes known respectively as electrode A and electrode B. Under stimulation, electrode A gives movement of the left hind leg, and electrode B elicits movement of the toes of the left front leg.The main aim of the experiment is to determine the minimal strength in voltage for eliciting the first appreciable motor response, when the frequency of the stimulating current is under control....

The present study was undertaken with one dog, on whose cortex, at the region of the sigmoid gyrus, were imbedded two permanent electrodes known respectively as electrode A and electrode B. Under stimulation, electrode A gives movement of the left hind leg, and electrode B elicits movement of the toes of the left front leg.The main aim of the experiment is to determine the minimal strength in voltage for eliciting the first appreciable motor response, when the frequency of the stimulating current is under control. With an ordinary audio-oscillator to administer the stimulus frequencies, the range of frequencies utilized is 20—20,000 cycles.For the same frequencies, the minimal voltage for eliciting the motor response varies considerably from one sitting to another (see Table 1), but within the same sitting the same frequencies, even when repeated with many other frequencie intervening, require closely similar minimal voltages. Furthermore, a clear trend is always present in the relationship between the frequency of the stimulating. current and the minimal voltage necessary for eliciting the motor response, i. e., within the range of frequencies used (20—20,000), the middle frequencies need farsmaller stimulus strength in voltage than either the lower or the higher ones to elicit the same motor response.It was found that the minimal effective voltage is lowest for the 300—1,000. cycles region. Frequencies lower than 300 or higher than 1,000 need higher voltage. Furthermore, frequencies from 300 downwards and from 1,000 upwards are accompanied by progressively higher voltage. Electrodes A and B yield closely similar results (see Table 3 and Fig. 2). Thus, the frequencies from 300 to 1,000 cycles may be considered as possessing the most effective stimulus value.Besides the definite frequency-voltage relationship just mentioned, frequency affects the type of motor response as that frequencies of 100 and below 100 no longer elicit the regular response of the leg or the toes alone, but give rise to neck. movement in addition. Neck movement becomes eventually the only motor response to frequencies 50—20. With electrode A the above mentioned phenomenon. appeared with great regularity (see Table 4).When the experiment was over, the dog was killed and its brain examined histologically. It is seen that both electrodes are in the sigmoid gyrus of the right hemisphere, but they enter into different depths. Electrode A penetrates into between layer Ⅴ and layer Ⅵ, while electrode B penetrates only into layer (see Figs. 4 and 5).

在本实驗中在一只小狗的乙狀回皮質中埋了兩个固定的电極,分別地利用这兩个电極,在狗的正常狀态下,試驗了各种頻率的电流,發現中間頻率(300—1000周)的电流引起运动反应所必需的电压最低,自300周以下和1000周以上,引起运动反应的最 低伏特值逐步增加。 实驗还証明,直接作用于乙狀回皮質上一定点的电流当其頻率降低到某种程度时,可以使运动反应的性質改变。

 
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