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     The core of 4G-MIMO and its key technology
     4G的核心——MIMO及其关键技术
     Google's Core:Discussion about PageRank Algorithm
     Google核心——PageRank算法探讨
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     The core of MPLS-LDP
     MPLS的核心—LDP
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     A Study of MRP Logic Model of ERP Core
     对ERP核心——MRP逻辑模型的研究
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     The fourth chapter, the core of smart home system—home automation gateway, introduce the hard construction and soft design of the gateway, which is the core of the home information network, expatiates on the function realization.
     第四章 家庭信息网络核心——智能家居环境网关:对整个家庭信息网络的核心部分无线智能家庭环境网关的设计,包括硬件平台,软件平台做了介绍,重点使是智能家居环境网关功能的实现。
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     the core essential factors;
     核心要素;
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     MPLS的核心LDP
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For example, in water, PCL and PAA formed core-shell nanospheres due to interpolymer hydrogen bonding.
      
Both the core-shell spheres and hollow spheres show reversible size dependence on temperature change because of the phase transition of PNIPAM around 32°C.
      
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In connection with experiments on the control of the rice stem borer, aseries of observations were conducted in 1949 to 1952 in Canton to determinethe form of the distribution of the moth, the egg-mass and the larval popula-tions of this species. It was found that the moth and egg-mass populations inrice seed-beds are in essential agreement with the random distribution of thePoisson series. The larval population in spring-crop fields apparently conformsto the contagious and the negative binomial distributions....

In connection with experiments on the control of the rice stem borer, aseries of observations were conducted in 1949 to 1952 in Canton to determinethe form of the distribution of the moth, the egg-mass and the larval popula-tions of this species. It was found that the moth and egg-mass populations inrice seed-beds are in essential agreement with the random distribution of thePoisson series. The larval population in spring-crop fields apparently conformsto the contagious and the negative binomial distributions. The larval population during hibernation period appears to be neither of the random distribution norof the contagious type but agrees with the negative binomial distribution. The population distribution of the injured stems, characterized by the ap-pearance of "dead-hearts" and "white ears" was also studied. The "dead-hearts"popolation in autumn-crop fields conforms with the contagious and the negativebinomial distribution. The distribution of the "white ears" is not at random. It iseither in essential agreement with the contagious or with the negative binomialdistribution, depending on the size of the sampling unit. Based on the form of population distribution the questions of sampling tech-nique, the design of field experiments, the transformation of data for statisticalanalysis, as well as the habits and control of insects have been discussed inrelation to the rice stem borer. Since the populations of larvae and "whiteears" differ significantly from the random distribution, a new technique forsampling has been proposed. It is hoped that this may be useful in the investi-gations on the relative effectiveness of control operations and for census purposes.

(一)本文就昆虫常见的数种集团分布:潘松分布、核心分布和负二项式分布的公式、性质和例子等略加讨论介绍。 (二)我们在广州附近对三化螟各时期和白穗、枯心苗的田间分布型式作了初步的调查,所得结果如下: 1.螟蛾和卵块在秧田上是随机分布的。 2.幼虫在本田分布不随机,符合核心分布和负二项式分布。 3.白穗在田间的分布不随机,1×1丛、2×2丛、……6×6丛各种取样单位型样本均符合负二项式分布,4×4丛、5×5丛和6×6丛三种取样单位型样本则更符合核心分布。 4.稻遗株内越冬幼虫分布不随机,亦不符合核心分布,但符合负二项式分布。 5.晚造本田枯心苗田间分布不随机,符合核心分布和负二项式分布。 (三)本文就昆虫集团分布型式的调查在实用上的意义,联系到三化螟来讨论,我们论及与虫害调查取样技术、田间试验设计、统计代换方法、昆虫生活习性和害虫防治等各方面的关系;其中取样技术方面,我们举出针对三化螟幼虫在本田和白穗不随机分布的取样新方法的尝试,希望对今后螟害调查工作有所帮助。 (四)最后,我们就一些昆虫分布的特殊问题加以论列,像密度对分布型式的影响,混合集团和环境因素...

(一)本文就昆虫常见的数种集团分布:潘松分布、核心分布和负二项式分布的公式、性质和例子等略加讨论介绍。 (二)我们在广州附近对三化螟各时期和白穗、枯心苗的田间分布型式作了初步的调查,所得结果如下: 1.螟蛾和卵块在秧田上是随机分布的。 2.幼虫在本田分布不随机,符合核心分布和负二项式分布。 3.白穗在田间的分布不随机,1×1丛、2×2丛、……6×6丛各种取样单位型样本均符合负二项式分布,4×4丛、5×5丛和6×6丛三种取样单位型样本则更符合核心分布。 4.稻遗株内越冬幼虫分布不随机,亦不符合核心分布,但符合负二项式分布。 5.晚造本田枯心苗田间分布不随机,符合核心分布和负二项式分布。 (三)本文就昆虫集团分布型式的调查在实用上的意义,联系到三化螟来讨论,我们论及与虫害调查取样技术、田间试验设计、统计代换方法、昆虫生活习性和害虫防治等各方面的关系;其中取样技术方面,我们举出针对三化螟幼虫在本田和白穗不随机分布的取样新方法的尝试,希望对今后螟害调查工作有所帮助。 (四)最后,我们就一些昆虫分布的特殊问题加以论列,像密度对分布型式的影响,混合集团和环境因素的影响于昆虫集团分布类型等,就中说明了密度过大过 小时了解分布型式成为不必要的,因为极度的不均衡会回复为均衡状态的。

The simplified Coal characteristic Coefficient β' = 2.35, as proposed in author's two previous papers to ho used with Vr for coal classification, has been for the first time repeatedly proved as shown in many graphs (Fig. 2-Fig 9) to represent (a) the foundamental characteristics of coal, like caking property, heating value, plastic layer thickness. etc. (b) the quality of the side Chain of the coal crystal (c) the percentage proportion of vitrain composition with respect to the other constitutents in petrographic...

The simplified Coal characteristic Coefficient β' = 2.35, as proposed in author's two previous papers to ho used with Vr for coal classification, has been for the first time repeatedly proved as shown in many graphs (Fig. 2-Fig 9) to represent (a) the foundamental characteristics of coal, like caking property, heating value, plastic layer thickness. etc. (b) the quality of the side Chain of the coal crystal (c) the percentage proportion of vitrain composition with respect to the other constitutents in petrographic components, during the different stages of coalification. (2) The simplified coal characteristic coefficient β' can be used to substitute the free swelling index, Roga number L.R. and the plastic layer thickness y etc in the coal classification of type together with the volatile matter on combustible basis VP for the coal classification of rank. (graph 10-graph 16) (3) Besides the VP and β' coal classification system,(Fig - 18), Carbon content on combustible basis CP with the free hydrogen H°= (HP=)for coal classification (Fig-23), VP vervus classification (Fig.-24), VP versus H°(Fig. -25) and VP versus (Fig-26) coal classification are also proposed. Comparisons of the different systems are made with the conclusion of adopting VP versus β' as the most logical system. (4) In the VP versus β' graph; the plastic layer thickness y curves (Fig.-27) represent the the rate of vitrinification during the different stages of coalification due to the different constituents of principal peat-forming plant substances. So a new international three-parameter coal classification system is proposed with the volatile matter on combustible basis VP as the first parameter and the simplified coal characteristic coefficient β' as the second principal parameter with the thickness of plastic layer y in mm as the third parameter. (Fig-28)

(1)简化特性系数β’=2.35代表着煤的分子结构中侧链的本质,而纯燃质挥发分 VP代表着煤的原始物质中侧链与核心部分的相对数量. (2)简化特性系β',即自由氢碳比率函数,是煤岩成分比例不同的标志;角质类和不透明质与透明基质数量的相对比例的标志;是镜煤质与非镜煤质含量相对数值比例的标志,亦即是镜煤化程度的标志。 (3)简化特性系β'反映了煤的特性,焦油产率,炼焦性质,胶层厚度,发热量及碳含量,氢含量,氧含量等,并有充分的证明。 (4)简化特性系β’揭露了近百年来国际间对於煤的特性的秘密,而是国际上有最完善的理论根据的分类指标。 (5)因此,作者建议(a)用VP及β’来作为中国煤工艺技术分类指标(6)用VP,β'与y作为国际煤分类指标,其中 厚度y,根据作者的见解,代表着煤在碳化过程中,凝 化的速度的标志。

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萧振群同志在其“调整连续梁桁架内部应力之研究”一文中证明两跨连续梁最有利的应力调整的绳准是在离端支承x=0.707l处的最大正负弯矩相等。讨论者们通过简易的数学运算,推广解决多种超静定桥梁应力调整绳准点的位置: 对于三跨连续梁桥,边跨的绳准点的位置在距端支承x≈0.775l处,中跨的绳准点在各距支承x≈0.3l处; 对于多跨连续梁桥,中间各跨的绳准点的位置在距支承x≈0.25l处; 对于两铰拱,绳准点的位置在x≈0.3l处,其推力的最有利调整值为:H_o=M_++M_-/2y,式中M_+、M_-、y等为绳准点处的最大正核心弯矩、最大负核心弯矩、相对铰轴连线的座标; 对于无铰拱,绳准点的位置在x≈0.25l处。

 
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