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reservation     
相关语句
  保留
     After 6 hour water - boiling, reservation ration of ILSS of AFRP are for 81.9% and 84.0%.
     水煮6h后,AFRP的ILSS保留率为81.9%及84.0%。
     The symbols (mRNA:U,C,A,G;DNA:T,C,A,G)play the most important roles in the import and export,the reservation and variance of the gene information.
     其信息符号 (mRNA :U、C、A、G ,DNA :T、C、A、G)对基因信息的传入与传出、保留与变异起着最主要的作用。
短句来源
     The rate of the facial nerve reservation in anatomy was 90 percent (18/20),and the cochlear nerve reservation was 25 percent(5/20).
     面神经解剖保留率为90%(18/20),耳蜗神经解剖保瘤率为25%(5/20)。
短句来源
     the pro-temperature was 55℃. The reservation of thiosulfinates was 84.8%.
     后期干燥温度为55℃,制得的大蒜片中硫代亚磺酸酯的保留率达84.8%。
短句来源
     Experiment result the enunciation adopts that craft to carry on the industrialization production,which fermented the germ measures from 2.0×10~(10)/mlincrease to 4.5×10~(10)/ml,the gemma measures from 45% increase to 95%,and fermentation period shortens to 15 hours from 24hours originally,made the bacterial fertilizer out of the gemma to examine after a year the live germ reservation rate still in 93.6%.
     试验结果表明 ,采用该工艺进行工业化生产 ,发酵菌量从 2 0× 10 10 个 /ml增加到 4 5× 10 10 个 /ml,芽孢生成量从 4 5 %增加到 95 % ,发酵时间从 2 4h缩短到 15h ,制成菌肥 1年后检测活菌保留率仍在 93 6 %。
短句来源
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  预约
     The Design of B/S Based Lab Reservation Management System
     基于B/S模式下的实验预约管理系统的设计
短句来源
     The Principle Analysis of HFC MAC Protocol Based on Rontention/Reservation Scheme
     基于争用/预约机制的HFC网络MAC协议基本原理分析
短句来源
     Collision free packet reservation multiple access(CF-PRMA)protocol and its performance
     无冲突分组预约多址接入(CF-PRMA)协议及其性能
短句来源
     The performance analysis of the reservation slotted ALOHA with multi-code protocol
     具有多重码的预约Slotted ALOHA协议性能分析
短句来源
     Adaptive QoS Handoff Algorithm Based on High Band Satellite Dynamic Channel Reservation
     基于高频段卫星动态信道预约的自适应QoS切换算法
短句来源
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  预留
     D-PRMA: A Novel MAC Mechanism Supporting Resource Reservation for Wireless Ad Hoc Networks
     D-PRMA:一种新的无线Ad Hoc网络资源预留MAC机制
短句来源
     This paper, based on the new generation of Internet Protocol -- IPv6, Resource ReSerVation Protocol (RSVP), Native ATM and WinSock 2, set up a software platform for multimedia communication supporting QoS setting by application program.
     本文基于新一代IP协议IPv6、资源预留协议RSVP、NativeATM和WinSock2,在传统网络和ATM网络上提出了一个支持由应用程序指定QoS的多媒体通信软件平台。
短句来源
     A Medium Access Algorithm for Ad Hoc Networks with Bidirectional Multi-Channel Reservation
     Ad Hoc网络中基于双向多信道预留的媒体接入算法
短句来源
     Research and Amelioration of Bandwidth Broker and Resource Reservation
     带宽管理与资源预留汇聚方案的研究与改进
短句来源
     There are several protocols to support streaming media transmission: Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Resource Reservation Protocol (RSVP), and Real-time Streaming Protocol (RTSP).
     资源预订协议( RSVP, Resource reSerVation Protocol)是正在开发的Internet 上的资源预留协议; 实时流协议(RTSP,Real-time Streaming Protocol)定义了一对多的应用程序如何有效地通过IP 网络传送多媒体数据。
短句来源
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  预订
     Application of UML and J2EE in Hotel Reservation System
     UML与J2EE在宾馆预订管理系统中的应用
短句来源
     There are several protocols to support streaming media transmission: Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Resource Reservation Protocol (RSVP), and Real-time Streaming Protocol (RTSP).
     资源预订协议( RSVP, Resource reSerVation Protocol)是正在开发的Internet 上的资源预留协议; 实时流协议(RTSP,Real-time Streaming Protocol)定义了一对多的应用程序如何有效地通过IP 网络传送多媒体数据。
短句来源
     The Application Study of Workflow Technology Based on Web Services in Web Hotel Reservation Agent
     Web服务工作流技术在酒店代理预订业务中的应用研究
短句来源
     Analysis of Development Trend of Hotel Tourism Distribution Reservation
     饭店旅游分销预订的发展趋势分析
短句来源
     As a specialized service to tourist,tourist website gives much information to the travel reservation.
     旅游网站作为旅游信息服务的专业网站,在提供大量的有关旅游信息的同时,也提供强大的旅游预订功能。
短句来源
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  reservation
The purpose of present work is to examine the financial problem of finding the universal reservation prices of a European call option written on exchange rate when there is proportional transaction costs of trading foreign currency in the market.
      
An approach is suggested to compute the reservation bid-ask price of foreign currency call option based on maximizing the investor's expected utility.
      
A distributed synchronous reservation multiple access control protocol for mobile Ad hoc networks
      
Moreover, there is a reservation acknowledgement process before data transmit in each reserved slot, so that the intruded terminal problem is solved.
      
Consideration is given to the problem of changing the structure of networks with reservation of lines between resources and their consumers when emergencies occur for the purpose of localization of faults and restoration of resource delivery lines.
      
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ABSTRACT The validity of the Hammett equation was reexamined in this paper with dissociation constants of anilines as well as phenols.It has been found that for eighty selected pKa values of anilines,seventy of phenols,and twenty one of N,N-dimethyl anilines could be correlated linearly with the substituent constants with satisfactory or excellent results.The ? scale was proposed as a parameter for another type of standard reaction series in which the functional group is capable of donating electrons conjugatively...

ABSTRACT The validity of the Hammett equation was reexamined in this paper with dissociation constants of anilines as well as phenols.It has been found that for eighty selected pKa values of anilines,seventy of phenols,and twenty one of N,N-dimethyl anilines could be correlated linearly with the substituent constants with satisfactory or excellent results.The ? scale was proposed as a parameter for another type of standard reaction series in which the functional group is capable of donating electrons conjugatively instead of withdrawing electrons,as is the case with ? in the dissociation of benzoic acids or with ? in aromatic electropbilic substitution.This parameter in combination with a few σ_(I.R.)~- values can likewise be used for measuring the linear free energy relationships in aromatic nucleophilic substitution reactions.A set of relatively complete σ~- values,of which seventy-eight are primary ?,fifty-four secondary and tertiary ?,eight ? eleven ?,seventy-three primary ? and twenty-three secondary and tertiary ?,are presented.However,values of those sub-stituents with formal charges must be accepted with some reservation.This set of σ-values has been shown to have excellent or at least satisfactory correlations with other sets of closely related σ values.This set of objective substituent constants can also be applied to aromatic nucleophilic substitution not any less adequately than that derived by J.Miller right from this very type of reactions.

本文用苯胺和苯酚的离解常数重新检查了Hammett方程式的有效性.发现了八十个选择的苯胺、七十个苯酚和廿一个N,N-二甲苯胺的pK_a值与取代基常数的直线相互关系能达到满意至优良标准(见表4).提出了以σ_((ArNH_3)~+)~-作为另一有推电子(而非拉电子)共轭效应的官能团的标准反应系的参数,并与少数σ_(I.R.)~-合用以衡量芳香亲核取代反应中的直线自由能关系.计算了一套较为完整的σ~-值,其中七十八个为初级值、五十四个为次级和三级值、八个σ_(I.R.)~-、十一个σ(ArHX~-)~-、七十三个初级σ_R~-和二十三个次级和三级σ_R~-.但带正式电荷的取代基常数必须有保留地接受.这一套σ~-值已证明与其他σ值有优良或至少是满意的相互关系.这套客观的取代基常数用之于芳香亲核取代反应不比Miller从该反应系中求出的数值差.

Early in 1963, Y. H. Liu described a new antiarchian genus and species,Yunnanolepis chii, from the Lower Devonian of Yunnan. Because the materialsthen availabie for study were limited to the ventfal (internal) side of the headshield, many of its morphological characters remained unkown. Yunnanolepis has beententetively allocated to Family Pterichthyodidae, with reservation as to its exact sys-tematic position. The present paper gives more detailed descriptions of most of the antiarchianremains recovered...

Early in 1963, Y. H. Liu described a new antiarchian genus and species,Yunnanolepis chii, from the Lower Devonian of Yunnan. Because the materialsthen availabie for study were limited to the ventfal (internal) side of the headshield, many of its morphological characters remained unkown. Yunnanolepis has beententetively allocated to Family Pterichthyodidae, with reservation as to its exact sys-tematic position. The present paper gives more detailed descriptions of most of the antiarchianremains recovered in the past decade from the Lower Devonian of Cuifengshan,Qujing County, Yunnan. The specimens are mostly well perservred and have beenascribed to five species and four genera. With the exception of one genus and species,they are considered to represent a new antiarchian order including two new familiesas follows: Order Yunnanolepiformes ord. nov. Family Yunnanolepidae fam. nov. Genus Yunnanolepis Liu Yunnanolepis chii Liu Y. parvus sp. nov. Genus Phymolepis gen. nov. P. cuifengshanensis sp. nov. Family Quijinolepidae fam. nov. Genus Qujinolepis gen. nov. Q. gracilis sp. nov. Family uncertain Genus Zhanjilepis gen. nov. Z. aspratilis sp. nov. These new antiarchians are not markedly different from the various forms knownfrom the Middle and Upper Devonlan in the external morphological characters of thehead shield and the trunk; but these new forms differ markedly from the others ina number of important anatomical features, which are summerized as follows: 1. Head shield hexagonal, and with small orbital fenestra nearer to the anteriormargin than to the posterior; there is a rhombic depression in front of the orbitalfenestra, but without the preorbital recess generally present in the antiarchians; 2. Shoulder girdle with simple fossa axillaris and without process us brachialisgenerally seen in the later antiarehians, but with a pectoral fenestra resembling thoseseen in the Euarthrodires; 3. Posterior lateral plates do not fuse with posterior dorsal lateral plates in the trunk-armour, but are entirely independent plates, as in Remigolepis; 4. The bone plates forming the pectoral fin are short and small; and the pectoralfin is probably not subdivided into bo segments, but continued throughout its extent; 5. On the dorsal side of the head shield, the infraorbital sensory grooves are notin contact in the ethmoidal region, but ptoceed to the anterior border; supraorbitalsensory grooves well dereloped, those on the ethmoidal regon extend laterally alongthe anterior border of the preorbital depression, and then turn forward on the internalside of the infraorbital sensory grooves to the anterior border of the lareral plates;preopercular line well developed; 6. Scales thick and rhombic in outline; 7. No endocranium preserved in all of the available specimens; 8. Postpineal plate of the head shield broad, forming the posterior border of theorbital fenestra and sutures the lateral plates. The anterior side of the centro-nuchalplate does not reach the orbital fenestra, postmarginal plate well deve1oped; subanaldivision of the trunk armour short. Following Stensio (1931, 1959) who had proposed a scheme of classification onthe hasis of structure of the pectoral fins and had studied, the pectoral fins andshoulder girdles of Arthrodira and Antiarchi in detail, He considered the antiarchiansas componente of Arthrodira and have grouped them with the Euarthrodira. But theantiarchians from the Middle and Upper Devonian were all highly specialized in thestructure of the shoulder girdle and pectoral fins, and there is a great morphologicalgap between them and the Euarthrodira. The structure of the shoulder glrdle in theantiarchiase from Lower Devonian of Yunnan fills up this gap nicely, and this affordsconvincing evidences for connecting the antiarchians with the Euarthrodira and in-dicates that the two are closely related to each other. In the specimens from Yunnanthere is a spine-like process on the external side of the fossa axillaris extendingbackward which indicates that these forms may be more closely related to the spino-thoracidian Euarthrodira. In the Early Devonian antiarchians of Yunnan the head shield is with ornamentsextending to the rostral border and there is a median levater oif the ventral side ofthe premedian plate. These indicate that they are different from Remigolepis and Asterolepis in thestructure of the jaw apparatus, and the presumed rostral process of the ethmoidalregion of the endocranium is also apparently different from those in the two lattergenera. The otico-occipital depression is narrow and shallow, quite in contrast tothose seen in the otic region of the endocranium in Remigolepis and Asterolepis whichare broad and short. On the other hand, the new Chinese forms are more or lesssimilar to Remigolepis and Asterolepis in the shape of the plates on the head shieldand their relationship with orbital fenestra. Based on the above comparison, thepresent author prefers using the characters of the shoulder girdle and pectoral finsfor the higher catagories in the classification of the antiarchians as proposed byStensio, rather than adopting the criteria based on the types of the head shield as pro-posed by Gross (1965). It seems that the classification based on the criteria shownby the characters of the shoulder girdle and pectoral fins would indicate a relationshipcloser to the natural affinity of the various groups. Truely, there are also a number of similarities between the Early Devonian formsand Remigolepis or Asterolepis of later ages, but the antiarchians from Lower Devonianof Yunnan nevertheless possess many characters in the structure of shoulder girdle,pectoral fins, sensory grooves and scales etc., which are distinctly primitive andbasically different from those shown by the later forms. Therefore, it is here sug-gested that they represeat new taxa on the ordinal and familial levels. In addition,it may be pointed out that the new forms indicate closer relationship with Remigo-lepis than with Bothriolepis as shown by certain features in the structure of thepectoral fins and the trunk armour. Concluding remarks: 1. The antiarchians from the Lower Devonian of Yunnan is a primitive grouprepresenting an early stage in the evolutionary history of the antiarchians. 2. The structure of the shoulder girdle seems to indicate that Yunnanolepiformes(ord. nov.) convincingly provide a link between the Euarthrodires and the antiarchiansof the Middle and Late Devonian ages. 3. The resemblance in the structure of the pectoral fins between the EarlyDevonian antiarchians of Yunnan and Remigolepis indicates that the unjointed pec-toral fin composed of several small plates is a primitive state characteristic. 4. Thehe appears to be closer relationship between the early antiarchians ofYunnan and the spinothoracidian Euarthrodires and Remigolepis. 5. The endocranium are neither calcified nor ossified in the Early Devonianantiarchians. 6. The function of the preorbital depression is probably related to the posi-tion of nasal capsules and the development of the preorbital recess of the headshield. 7. In the early antiarchians, the infraorbital sensory grooves lack the suborbitalanterior branches and the distributional pattern of the supraocbital sensory grooveshows similarity to that in Chimaera manstrosa; preopercular grooves well developed. 8. The Early Devonian antiarchians of Yunnan had anteriorly situated orbitsand very thick rhombic scales. Apparently these are primitive characters.

本文研究的是最近十多年古脊椎动物与古人类研究所在云南早泥盆世采集的胴甲鱼(Antiarchi)化石,共计四属五种。这是迄今所知地质时代最早而且目前仅见于我国的胴甲鱼类。文中记述了它们的形态特征,并分别与其相近的属种作了对比,从而建立了胴甲鱼纲中的一新目。这一发现和研究,使我们比较全面地了解到我国早泥盆世胴甲鱼的形态结构,丰富了早泥盆世动物群的内容,更多地提供了划分地层的古生物依据;在鱼类进化史上,填补了胴甲类和真节甲类(Euarthrodira)之间的缺环,对进一步认识胴甲鱼类的起源和了解胴甲类的发展辐射也给以新的启示。

In this paper the results and experience of the presplitting technique for the slope of the open pit and the underwater engineering are introduced. The main parameters of presplitting are analysed,and the calculation formulas of hole spacing and linear charge concentration are presented. In the last part of this paper,method of surveying presplitting effect is in- troduced and the width of crack,the unevenness,the damage zone,the reduction of ground vibration and the reservation of the hole marks are used...

In this paper the results and experience of the presplitting technique for the slope of the open pit and the underwater engineering are introduced. The main parameters of presplitting are analysed,and the calculation formulas of hole spacing and linear charge concentration are presented. In the last part of this paper,method of surveying presplitting effect is in- troduced and the width of crack,the unevenness,the damage zone,the reduction of ground vibration and the reservation of the hole marks are used to evaluate the effect of presplitting.

本文介绍了予裂爆破技术在露天矿边坡工程上以及水下工程中的应用情况和经验,分析了予裂爆破的主要参数,提出了钻孔间距、线装药密度这两项参数的计算公式。最后介绍了评价予裂爆破效果的观测方法。指出:裂缝宽度、不平整度、孔痕保留状况、破坏范围和减震效果等可做为评价效果的判据。

 
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