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second largest
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  第二大
     Line Graphs with Second Largest Eigenvalue No More Than (5~(1/2)-1)/2
     第二大特征值不超过(5~(1/2)-1)/2的连通线图
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     We also determine the unicyclic graph of order n with the second largest independent index (Theorem 4,Theorem 5),and the unicyclic graph of order n with the second smallest independent index(Theorem 6, Theorem 7).
     本文讨论n阶单圈图的独立指数,得到n阶单圈图的独立指数的上、下界(定理2)和独立指数取得上、下界的n阶单圈图(定理3),以及独立指数第二大的2阶单圈图(定理4,定理5),独立指数第二小的n阶单圈图(定理6,定理7)。
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     The Second Largest Eigenvalue of Laplacian Matrix of Tree
     树的Laplacian矩阵的第二大特征值
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     The Second Largest Eigenvalue of Laplacian Matrix of Connected Bipartite Graph
     连通偶图的Laplacian矩阵的第二大特征值
短句来源
     Let G be a simple graph without isolated point. We denote λ 2 (G) the second largest eignvalue of G .
     设 G 为无孤立点的简单图,λ2( G) 为 G 的第二大特征根。
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  “second largest”译为未确定词的双语例句
     Structure of Graphs Whose Second Largest Eigenvalue Is Equal to (5~(0.5)-1)/2
     第二特征值为(5~(0.5)-1)/2的图的结构
短句来源
     In 1982, Cvetkovic D posed the problem of characterizing graphs with the second largest eigenvalue not greater than 1. Cao D and Hong Y determined graphs without isolated vertices with the property 0<λ 2(G)≤13 . In 1993, Miroslav P gave all grahps with the property λ 2(G)≤2-1 . There are great difficulty to solute the problem of Cvetkovic D.
     1982 年Cvetkovic D 提出“求出图的第二大根λ2( G) ≤1 的所有图”这一问题,1993 年,Hong Y 和Cao D 给出了λ2(G)≤13 的所有图,紧接着Miroslav P给出了λ2( G) ≤2 - 1 的所有图,但对Cvetkovic D 的问题的解决还需进一步的努力。
短句来源
     Let λ2(G) be the second largest eigenvalue of a unicyclic connectedgraph G. Our main results are:(1)λ2,(G)≥λ2(S) with equality iff G≌S ̄3 in the case of n ≥8.(2) If G S and n ≥8,then λ2(G) ≥1.
     设G为n阶连通单圈图,λ2(G)为G的第二个特征值.文中的主要结果如下:当n≥8时,λ2(G)≥λ2(S),且等号成立的充要条件是G≌S; 当GS且n≥8时,λ2(G)≥1.
短句来源
     Let G n be a line graph and λ 2(G n) be the second largest eigenvalue of G n, the smallest limit point of λ 2(G n) is presented5-12. Here G nK 1 r+1( K 1 r+1 is the graph obtained by coalescence ofa complete graph K r+1 of r+1 vertices with a path P 2 of length one at one of its vertices).
     设Gn 为线图 ,λ2 (Gn)为Gn 的第二大根 ,给出λ2 (Gn)的最小极限点 :5 - 12 .这时 ,Gn K1r+ 1(K1r+ 1是由完全图Kr+ 1在其一顶点处与P2 的连接图 ) .
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     Let G=(V,E) be a simple connected unicyclic graph,λ_1(G),λ_2(G) be the largest and the second largest Laplacian eigenvalues of G,respectively.
     设G=(V,E)是一个n阶的连通单圈图,λ1(G),λ2(G)分别是图G的Laplacian矩阵的最大和次大特征值.
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  相似匹配句对
     Second,
     二是对于?
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     Second, the s
     第二章:追寻一个普通读者的阅读过程,寻找对诗集的戏剧性的体验。
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     The Second Largest Eigenvalue of Trees
     树的第二个最大特征值
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     China is Company N's second largest market.
     N公司利用关系营销,经过十几年的努力,终于取得并保持目前国内市场份额第二的地位。
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  second largest
In samples of peat soil, diazotrophic methanol-utilizing bacteria prevailed (2.0-2.5 × 106 cells/g); the second largest group was facultatively anaerobic bacteria of the family Enterobacteriaceae.
      
Close to a million of people has been infected and a half million people died of AIDS annually in Asia, becoming the second largest epicenter of global AIDS epidemic.
      
On the other hand, a rapidly developing industry has led to a doubling of the population, so that Isfahan is now the second largest town in Iran.
      
Little is known about suicidal behavior among Mexican Americans, the second largest and most rapidly growing ethnic group in the United States.
      
Method: Our study concerned Germany's second largest city, Hamburg (population 1.7 million), and involved an evaluation of psychiatric principal diagnoses in general and psychiatric hospitals.
      
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China has the second largest population of buffaloes in the world. All the indigenous buffaloes of China are of swamp type,and is the main source of power on farms,especially in rice producing areas.In general,the Chinese buffalo may be roughly classified into three types,large,medium and small.Their main characteristics are: ability to thrive on coarse feeds and rough management conditions do- cility and a long productive life;with respect to comformation,the body is heavy,the chest is deep and...

China has the second largest population of buffaloes in the world. All the indigenous buffaloes of China are of swamp type,and is the main source of power on farms,especially in rice producing areas.In general,the Chinese buffalo may be roughly classified into three types,large,medium and small.Their main characteristics are: ability to thrive on coarse feeds and rough management conditions do- cility and a long productive life;with respect to comformation,the body is heavy,the chest is deep and fairly wide;and the milk rich in fat.However,their milk and meat production are not sufficiently high,and the hindquarters poorly developed,all these faults need ur- gent correction and improvement. In 1957 and 1974,55 Marrah and 50 Nili/Ravi buffaloes were introdu- ced from India and Pakistan respectively.These two river-type milk breeds are well adapted in China.It is estimated there are 2,300 Murr- ah and 210 Nili/Ravi being mantained. The work on the crossbreeding of local cows with Marrah bulls was started in 1965 by means of AI,and about 118,000 grades produced. The Murrah Grades are generally recognized as being superior to local breeds in size,working ability and milk production. The crossbreeding programme was further strengthened since 1977. As a part of this project,the progenies of Murrah×local cow are now being mated to Nili/Ravi bulls to produce a cross possessing 50% germ plasm of Nili/Ravi,25% Murrah and 25% local breed.Up till now,1,492 grades have been produced.The growth rate,milk yield, conformation and disposition of these crosses appear reasonably well。 Therefore,the three-breed crossbreds will be used as the foundation stock for developing a new breed of milk-meat buffaloes in China.

中国水牛数量居全球第二位,均属沼泽型,大致可分为大、中、小三种类型,其共同特点是:利用粗饲料能力强,性温驯,使用年限长,体格粗壮,胸深广和乳脂率高。但乳、肉生产性能较低,后躯发育较差,这些缺点急待改进,1957年和1974年分别从印度和巴基斯坦引进么拉55头和尼里/拉菲50头。这两个河流型乳用水牛品种都能适应中国环境。目前在中国约有么拉2300头和尼里/拉菲210头。引种目的主要是通过杂交以改良本地水牛。1965年开始用人工授精方法共繁殖么拉杂种牛约120000头,这些杂种水牛的生产性能都优于本地水牛。1977年进一步用尼里/拉菲公牛和么拉杂一代母牛杂交,已繁殖其后代含尼里/拉菲、么拉和本地水牛种质分别为50%、25%、和25%的三品种杂交水牛1492头,这种杂交水牛的生长速度和乳、肉生产性能等表现都颇为理想。因此,三品种杂交水牛可作为我国选育乳肉兼用型水牛的基础。

The global seismicity of the second quarter of the year 1986 has recovered normal level.The Aleutian Is.earthquake of May 7 may be the largest or the second largest earth- quake in 1986,its magnitude is slightly lower than that of the 1985 Mexico earthquake. There are two kinds of earthquake sequences occurring after a period of quiescence and they may be sequences of different magnitude levels.The occurrence of the Aleutian Is. earthquake may indicate the revival of seismicity of the seismic belt on the...

The global seismicity of the second quarter of the year 1986 has recovered normal level.The Aleutian Is.earthquake of May 7 may be the largest or the second largest earth- quake in 1986,its magnitude is slightly lower than that of the 1985 Mexico earthquake. There are two kinds of earthquake sequences occurring after a period of quiescence and they may be sequences of different magnitude levels.The occurrence of the Aleutian Is. earthquake may indicate the revival of seismicity of the seismic belt on the north-west border of the Pacific Ocean.The next target of earthquake migration may be Kamchatka Pen.and the Kurile Is.Whether or not large earthquakes will occur in the Japan Trench remains to be seen.

1986年第二季度的全球地震活动已恢复到正常水平。5月7日的阿留申群岛地震可能是1986年中最大或次大的地震,其震级略低于1985年的墨西哥地震。地震活动于平静后发生大的序列有两种类型,并在不同震级水平的序列中都存在。阿留申群岛地震的发生可能标志着太平洋西北边缘地震带地震活动的复苏,地震迁移的下一个目标可能是堪察加半岛和千岛群岛。日本海沟是否也将发生大地震令人注目。

In this paper, a complex variable function method for solving the hole shape optimization problem in an elastic plane is presented. In this method, the stresses in hole problems are analysed by taking advantage of the efficiency of the complex variable function method. To optimize the hole shape, the coefficients in conformal mapping functions are taken as design variables, and the sensitivity analysis and gradient methods are used to reduce the largest circumferential stress in absolute value and at the same...

In this paper, a complex variable function method for solving the hole shape optimization problem in an elastic plane is presented. In this method, the stresses in hole problems are analysed by taking advantage of the efficiency of the complex variable function method. To optimize the hole shape, the coefficients in conformal mapping functions are taken as design variables, and the sensitivity analysis and gradient methods are used to reduce the largest circumferential stress in absolute value and at the same time to make the second largest circumferential stress in absolute value not exceed the largest one (in fact, these two stresses are the stationary values of the circumferential stresses). The coefficients in conformal mapping function are revised by iteration step by step until the largest circumferential stress in absolute value is reduced to the second largest stress. This method guarantees the continuity, differentiability and accuracy of the stress solution along the boundary, and it is evident that this method is better than either the difference method or the finite element method.

本文提出了弹性平面孔洞形状优化的复变函数方法,充分利用了复变函数方法分析孔洞应力的有效性,进行应力分析。对孔洞形状的优化,是将保角变换函数中的一些系数做为设计变量,采用敏度分析和梯度法降低绝对值最大的周向应力,同时使绝对值次大的周向应力不超过绝对值最大的周向应力(这两个周向应力实际是周向应力的两个极值点处的周向应力值)逐次迭代修正保角变换函数中的系数值,直至绝对值最大的周向应力降低至绝对值次大的周向应力相等为止。这个方法保证了应力解在边界上的连续性、可微性和高精度性,比差分法和有限元法有着明显的优越性。

 
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