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two central
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  两个核心
     Survival analysis and risk theory are two central problems in actuarial science.
     生存分析和风险理论是精算研究中的两个核心问题。
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     Business strategy management consists mainly of the two central components of strategy design and strategy implementation.
     企业战略管理主要包括战略设计和战略实施两个核心环节。
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     This paper exhaustively analyses Heidgger's two central conceptions: the "they 'and authenicness, and points out that Heidgger s analytic of Dasein around the wto conceptions will be of practical significance for the contemporary western society.
     常人和本真性是海德格尔的两个核心概念,围绕这两个概念所作的此在分析对于当代西方社会仍具有现实的意义。
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     In a project construction, the question of progress management is essential; which involves these two central aspects: project quality and the benefit.
     在一个工程项目建设中,进度管理是重要的管理内容之一,它涉及到工程项目质量和效益这两个核心的方面。
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     The paper first presents the nature of the foreign language reading comprehension teaching, and then gives a detailed analysis to the two central elements in teaching: teaching strategies and learning strategies. Finally, the application of the two types of strategies in the classroom is discussed.
     本文首先叙述了外语阅读课堂教学的本质 ,然后详细分析了课堂教学的两个核心因素 :教师的教学策略和学生的学习策略 ,以及这两个策略在课堂教学中的具体操作和运用
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  “two central”译为未确定词的双语例句
     The experimental area(EA) of five spot well pattern consisted of 6 injection and 12 production wells and 53.96% and 51.99% oil had been recovered from two central production wells after polymer flood.
     试验区为五点法面积井网,注入井6口,采出井12口,其中两口中心井采收率为53.96%和51.99%。
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     FILTERED PROCESS AND ITS TWO CENTRAL LIMIT THEOREMS
     滤过过程及其二个中心极限定理
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     Methods 2 877 students in two central elementary school were selected.
     方法 随机选择 2所中心小学 ,对 2 877名小学生学生体检结果进行统计学分析。
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     Strengthening the construction of the infrastructure and emphasizing on the natural resource-oriented industries should be the two central points of the development strategy, which should be carried out simultaneously and parallelly.
     综合分析西部开发的条件、背景及难点 ,西部国土资源开发和区域经济发展要以市场为导向 ,以全面开放促开发 ,坚持以公益性工程建设为中心和以资源开发型产业发展为中心两条腿走路的发展战略。
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     For the first time an aqueous oxidation-reduction process of binuclear copper(Ⅱ) complexes,in which two metal centers liked in via H2O2im-,N3-,SCN-bridge has been studied by cyclic voltammetry. Macrocyclic ligand was synthesized by condensation of 2,6-diacetylpyridine with 3-oxapentane-1,5-diamine. The interaction between two central atoms in complexes was investigated.
     由2,6-二乙酰基吡啶与3-氧杂戊烷1,5-二胺缩合成大环配体,首次用循环伏安法研究了在水溶液中它与铜(Ⅱ)生成以H2O,im-,N-3和SCN-为桥联的双核配合物的氧化还原过程,探讨了两中心原子间的作用,联系配合物歧化活性提供的信息,从电化学角度解释了活性实验的结果。
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  相似匹配句对
     Two.
     二.
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     Two.
     二、末日意识
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     The Two-Parametor Central Limit Theory
     两指标的中心极限定理
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     On Ring with Central Exponent Egualing Two
     关于中心指数是2的环
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     Central Station
     中央车站
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  two central
The problems for research are described in terms of two central concepts - social disablement and need.
      
These results suggest that sensorimotor integration is abnormal in patients with MSAp in at least two central nervous system sites: the sensorimotor cortex, and the brainstem reticular formation.
      
Furthermore, maximum parsimony and neighbour-joining trees showed a clear subdivision of Asian water frogs into three Anatolian lineages, two central Asian lineages, a Cypriote lineage and the bedriagae lineage.
      
Building on this foundation, we introduce the main ideas of our model and focus on two central features: generative capital and the distributive order.
      
Two central issues that confront us now are 1) improving the accuracy of diagnosis, including identifying any underlying infectious causes, and 2) limiting the long-term damage from both the disease and its therapies.
      
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A case of partial diplomyelia and myelodysplasia involving the lower part of the spinal cord is reported. The patient, a 55-day old baby girl, was born with a defect on the occipital bone. She had myelomeningocele, hydrocephalus, syringobulbia and syringomyelia of the cervical and thoracic segments. The mid-thoracic region was comparatively normal; below that level the central canal was markedly dilated (hydromyelia). Complete redu- plication of the spinal cord occurred twice at levels of the third lumbar and...

A case of partial diplomyelia and myelodysplasia involving the lower part of the spinal cord is reported. The patient, a 55-day old baby girl, was born with a defect on the occipital bone. She had myelomeningocele, hydrocephalus, syringobulbia and syringomyelia of the cervical and thoracic segments. The mid-thoracic region was comparatively normal; below that level the central canal was markedly dilated (hydromyelia). Complete redu- plication of the spinal cord occurred twice at levels of the third lumbar and the first sacral segment with connective tissues and blood vessels in between. The two cords were not symmetrical, especially in their dorsal half. As many as five supernumerary posterior horns were found on a single level (extreme myelodysplsia). The lower sacral cord appeared essentially normal; nevertheless, its two halves were asymmetrical, the left side being larger. Besides, it had two central canals extending to its lower end. As to the cause of diplomyelia and myelodysplasia, several factors are involved. The closure of the neural tube may be delayed arid the edges of the neural folds may be rugged. The folds may roll inwards approximating each other and become fused with the floor plate, giving rise to two medul-lary tubes which may be separate or fused, symmetrical or asymmetrical. The pattern and degree of the anomalies were conditioned by the depth of infolding and degree of ruggedness of the folds, the manner of their fusion and the extent of mesenchyme invasion into the tube. The supernumerary dorsal horns have generally associated aberrant sensory cells in their vicinity. These abnormal structures apparently develop from a unit in the neural fold.

本文報告一例部分的二重脊髓和脊髓結構亂生。一個55天的女嬰,枕骨局部缺損、小腦腦膜膨出、側腦室和第3腦室擴張積水,延髓、脊髓頸部和胸部上段的背部有狹長的空洞,間與中央管相連。胸髓中段比較正常。中段以下和腰髓上端,中央管高度擴張積水。在第2腰節至第1骶節,脊髓背部出現畸增的後角,中央管也見歧分,形成二重脊髓。在第3腰節和第1骶節,左右二半有2次完全分立,中間一度長合。分立時左右二半間有纖維組織和血管侵入。重出的脊髓左右不全對稱。在腰髓下段內部結構亂生,背部一度出現5個畸坩後角。第1骶節以下歧出的脊髓又行併合,左右也不對稱,左側較大。2個中央管伸至骶髓下端。在重出部分的附近有異位的感覺細胞,它們的纖維似進入畸增的後角。二重脊髓和脊髓結構亂生可由於神經管閉合延綏,左右神經襞背緣支離,向前迴捲,接合底板。脊髓重出和亂生的形態取决於二侧神經襞支離的程度、迴捲的深淺、各部生長的快慢,以及結締組織的侵入的方式。左右的分立可以完全或不完全;歧生的結構可以對稱或不對稱。畸增的部分各成單位,在神經襞上似屬一體。

Two relatively complete mandibles and over a hundred isolated teeth of new ho-minoid primates were discovered from Lufeng,Yunnan Province,by a team of theInstitute of Vertebrate Paleontology and Paleoanthropology,Academia Sinica,and theYunnan Provincial Museum in 1975 and 1976.One of them was described in “KexueTongbao”(Vol.23,No.9)as a new species of Hominidae—Ramapithecus lufengensis.The other one is considered here to be a new species of Sivapithecus.The fossil locality-Shihuiba Colliery(IVPP.75033,102°4'E,25°3'N)is...

Two relatively complete mandibles and over a hundred isolated teeth of new ho-minoid primates were discovered from Lufeng,Yunnan Province,by a team of theInstitute of Vertebrate Paleontology and Paleoanthropology,Academia Sinica,and theYunnan Provincial Museum in 1975 and 1976.One of them was described in “KexueTongbao”(Vol.23,No.9)as a new species of Hominidae—Ramapithecus lufengensis.The other one is considered here to be a new species of Sivapithecus.The fossil locality-Shihuiba Colliery(IVPP.75033,102°4'E,25°3'N)is situatedon the south slope of Mioshanpo hill which is 9 km to the north of Lufeng,about 60 kmnorth-west of Kunming.A rich associated vertebrate fauna was found also in thelignite deposits of the site at the same time.Preliminary analyses of the fauna maydate the stratum to late Early Plioeene or early Middle Pliocene.Ramapithecus lufengensisThe type specimen of the species is a relatively complete mandible with all teethexcept two central incisors(PA.580,P1.Ⅱ and Fig.1).It is comparable to otherspecies of Ramapithecus in size and morphology,but is different from other knownforms of the same genus in the following specific characters:The dental arcade of the mandible is regularly arcuate.The incisors reduced inrelation to cheek-tooth size when compared with Dryopithecus and Sivapithecus butnot as markedly as in other species of Ramapithecus.The canines are also small,witha little stylid on the distal base of the crown.The P_3s are distinctly bicnsped,andthe contours of their crowns present trigon.They have prominent mesiobuccal cin-gulum and lingual cingulum which is not continued with distal border of the crown.The P_4s show a molarized tendency,that is,the posterior border of the talonid tendsto divide into three small cusps.The crowns of the molars are relatively wide,andthe wrinkles of the occlusal surface are slightly complicated.The M_3s also have theMetastylid and the Sixth cusp as in other species of Ramapithecus,but neither buccalcingulum nor small pit is developed.In respect to the material known at present,Ramapithecus lufengensis is morpho-logically more nearly related to early forms of the Homo than other species of the samegenus,so that it is quite possible to be a direct ancestor of the early Homo and to bea transitional type from ape to man.The mandibular specimens of Ramapithecus of middle and late Miocene aregenerally similar to those of Proconsul in some primitive characters.This raises thepossibility that Ramapithecus was derived from early Miocene Proconsul.While the early and middle Pliocene forms of Ramaplthecus show morphologically the tendenciesof differentiation.These indicate that they probably developed in the different direc-tions.The discovery of Ramapithecus lufengensis specimens indicates that south-westernChina was one of the importent regions of the human origin.Sivapithecus yunnanensis sp.nov.The new species is represented by a rather complete mandible,with all incisors,canines,premolars and left M_1-M_2 in situ,and right M_1-M_2 separated from the man-dible(PA.548,Pl.Ⅲ).The specific characters are the following:The mandibular symphysis is deep andthe corpora gradually become lower from anterior to posterior.Spina digastrica isclearly shown on the lower margin of symphyseal portion,there are even flatter andbroad fossa digastrica.There is a posteriorly directed and massively developed simianshelf.The crowns of incisors are particularly high.The canines are very high andsharp,showing a horn-tapered shape.There is a very deep notch along lingual edgeon the tip of metaconid of the lower molar somewhat posteriorly.The wrinkle on theocclusal surface of the check-tooth is complicated.The mandible PA.548 closely resembles to those of Sivapithecus of Asia in sizeand morphology,but differs greatly from those of Dryopithecus of Europe.Amongthe Sivapithecus,Lufeng specimen differs from any other species as mentioned abovein the specific characters.So it is designated as Sivapithecus yunnanensis sp.nov.The new species is morphologically more closely related to fossil orang-utan ofPleistocene than any other known fossil pongids of Neogene.So that it is possiblethat Sivapithecus yunnanensis is an ancestor of both fossil and living orang-utan.The fossil orang-utan distributed throughout south China and South-east Asia inPleistocene.Judging from their discoveries over the Eurasia,the Sivapithecus coexisted withthe Ramapithecus in the Old World except Africa.The early form,e.g.,the Tur-kish specimen of the early Middle Miocene,morphologically bears certain charactersof Proconsul and Ramapithecus.This may indicates that both Sivapithecus and Ra-mapithecus originated from Proconsul.Among the specimens of Sivapithecus of earlyand middle Pliocene,the Sivapithecus indicus of Pakistan possesses certain charactersof Australopithecus,while Sivapithecus yunnanensis is closer to fossil orang-utan.Thisreflectes the tendency of differentiation and development of Sivapithecus during thatperiod.

本文记述在云南禄丰早上新世褐煤层中发现的两个古猿下颌骨化石:即禄丰腊玛古猿(Ramapithecus lufengensis)和云南西瓦古猿新种(Sivapithecus yunnanensis sp.nov.)。鉴于它们在形态上各自显示出接近于人属的早期类型和化石猩猩的性质,作者认为它们可能分别代表人类和猩猩的直系祖先,而我国西南也可能是人类起源的重要地区之一。文中还对腊玛古猿和西瓦古猿的由来及其发展趋势提出了一些初步的看法。

Several primary results have been obtained after careful measurement of the double-ribbon flare of 23 July 1980.(1) The time varies of the mean width, the distance between the boundaries and the distance between the two central lines of the two ribbons are measured. We find the development of the double-ribbon flare can be divided into two stages. During the first 8 minutes, the ribbons simply expand outward in opposite directions respectively, the increase of the distance between the central...

Several primary results have been obtained after careful measurement of the double-ribbon flare of 23 July 1980.(1) The time varies of the mean width, the distance between the boundaries and the distance between the two central lines of the two ribbons are measured. We find the development of the double-ribbon flare can be divided into two stages. During the first 8 minutes, the ribbons simply expand outward in opposite directions respectively, the increase of the distance between the central lines of the two ribbons can be almost accounted for by the expansions, only.

本文对7月23日3B级双带耀斑及有关资料做了测量分析,得到:(1)这个双带耀斑的运动过程明显地可分为亮带的单纯膨胀阶段和膨胀停止后的单纯位移以及收缩阶段;(2)两个亮带的膨胀基本上是单向的,即只向外侧膨胀;(3)它产生于老活动区的小黑子群中,但是耀斑之前没有发生暗条的消失,附近弯曲大暗条的形态在耀斑前后未发现变化;(4)10cm射电爆发的峰值在时间上与耀斑面积突增(爆发相)的时刻相对应。

 
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