查询词典 pre-existence

The controller uses the data write buffer to reduce the data access waiting time, and employs the two ways of duo channels instruction pre-fetch buffer to decrease the fetching instruction waiting time and increase the instruction pre-fetch buffer hit rate. Meanwhile, to reduce the waiting time aroused by page miss of SDRAM, a four ways of on chip stack memory is introduced. Compared with traditional controller through experiments the novel SDRAM controller gets a high reduction up to 63% in access waiting time and 64% in page miss.

该控制器采用数据写缓存方式降低了数据在存取内存时的等待时间；并引入了两组双通道预取指令缓冲器，每组双通道都用以减少取指令时的等待时间，采用两组的结构是为了增加指令预取的命中率；同时还使用了四路组关联的片上堆栈存储器来降低SDRAM的页失效频率，从而降低了因页失效而需要等待的时钟周期。

This paper sets forth regimentation principle,program and method of the pre-tender price in the building project item,and presents how to make pre-tender ,embodies the importance of project bidding bottom in bidding work.

从标底价格的编制原则、编制程序、编制方法等方面对建设工程项目招标标底的编制进行了阐述，并提出了如何编制工程标底，体现了工程标底在招投标工作中的重要性。

Pre-operative multislice CT image evaluation is of great use for prediction of surgical removability in patients with pancreatic carcinoma pre-operatively.

术前用多层螺旋CT对胰腺癌患者进行三维血管重建，可提供可靠的肿瘤和周围血管侵犯情况的影像学资料，对胰腺癌术前可切除性评估有重要的临床意义。

5M of the super- large cantilever pre-stressed concrete cov- er beam in Wuhan Middle Ring Line West Ring Section Road Rebuilding and Extension Project as the analyzing example,the article simply sets forth the analysis and comparison of the plane and space stress characteristics of the pre-stressed concrete cover beam.

该文以武汉中环线西环段道路改扩建工程中标准宽25.5m的超大悬臂预应力混凝土盖梁为分析对象，简要阐述了预应力混凝土盖梁的平面与空间受力特性的分析比较。

Cao Yushu total right to build wells at coal mine near a period of construction work to be fully affirmed the work of the next stage of requirements: First, be aware of Coal Mine Safety Elm Well the importance of pre-production and further enhance the sense of responsibility and sense of mission , we must bear in mind the "second pioneering" historical mission, to take more effective and more practical methods of work, the scientific arrangement of the work, carefully organize construction work, the remaining project duration inverted one by one to ensure that mine pre-production schedule; second, is necessary to study the construction process to solve difficulties and problems arise, focus on strengthening the soft rock supporting and construction process of research, trial and error comparison, mine worked out well for Elm soft rock supporting a new road.

曹总对榆树井煤矿筹建处近一时期的矿井建设工作予以了充分肯定，并对下一步的工作提出了要求：一是要认识榆树井煤矿安全试生产的重要意义，进一步增强责任感和使命感，要牢记肩负的"二次创业"历史使命，采取更加有效、更加务实的工作方法，科学安排各项工作，精心组织施工，对剩余工程逐项倒排工期，确保矿井按期试生产；二是要及时研究解决施工过程中出现的困难和问题，重点加强对软岩支护和施工工艺的研究，反复试验比较，摸索出适合榆树井煤矿软岩支护的新路子。

There are massive salt dome s of great thickness,which ranges from several dozen meters to 3,700 meters,in pre-salt Carboniferous carbonate reservoirs of the Pre-Caspian Basin.

由于盐丘和围岩间存在巨大的速度差异，因此导致盐体本身和下伏地层在常规地震资料中出现反射品质降低、构造失真、畸变(如盐下石炭系目的层地震反射层在盐丘部位出现构造上拉现象)，消除盐层的影响是含盐油气盆地勘探的重要课题。

The experimetal results show that the flexural moment of the sample in the prebending direction is far bigger than that in the vertical direction to pre-bending and the spherical shape can be conquered during pre-loading laser peening forming to a great extent.

试验结果表明，在弹性预加载下，板料在弹性预弯方向获得的弯矩要比与弹性预弯垂直方向上的弯矩大得多，弹性预加载下激光喷丸成形可以有效地克服自由状态下激光喷丸件呈球形现象，激光喷丸件的曲率是自由状态下激光喷丸成形曲率的2～3倍；在相同曲率下，弹性预加载下激光喷丸成形件的表面粗糙度比自由状态下激光喷丸成形件的表面粗糙度要低1～2等级，因此弹性预加载下激光喷丸成形要优于自由状态下的激光喷丸成形。

Section 5 bases on analysis of theory and these problems in foregoing 4 parts, then fundamental thinking on establishment of curriculum system on pre-professional education of teacher in local advanced normal universities is suggested at angles of training target and patterns, selection of curriculum value orientation, guideline and basic principle on reform of curriculum, etc. Meanwhile, major of Mathematics and Applied Mathematics is taken as instance and a configuration scheme of curriculum on pre-professional education of teacher in local advanced normal universities is developed with integrated local feature, multi levels, openness and selectiveness.

第五部分立足于前四部分的理论分析和问题剖析，从培养目标与培养模式的确立，课程价值取向的选择以及课程改革的指导思想、基本原则等方面入手，提出了构建地方高师职前教师教育课程体系的基本思路，并以数学与应用数学专业为例，研制了一个融地方性、层次性特点和开放性、选择性特色于一体的地方高师职前教师教育课程设置方案。

The anti-oxidation effect is not remarkable when the composite is alone pre-impregnated in HBO2 or TESO soaker. The anti-oxidation property is good for the composite pre-impregnated in H3PO4 or H3PO4+HBO2 mixed solution soaker. The mass loss rate oxidated at 900℃ for 2h are 0.40% and 0.33% respectively.

单独预浸涂以硼酸或TEOS为主的浸渍剂后，试样抗氧化效果不明显，而预浸涂以磷酸或磷酸+硼酸混合液为主的浸渍剂效果较好，900℃，2h静态氧化质量损失率分别为0.40%和0.33%。

The evolution process under the control of the multigeodynamic force system (including the boundary forces of Eurasia-Pacific-Indian three massive plates around Nansha block, effects of the deep mantle, relative soft layer-sliding planes within Nansha lithosphere block and the earth's rotational inertial force) can be briefly divided four stages: the late Cretaceous to the early Eocene stage of uprilfing-erosion and shear-extension caused by the oceanwards-eastwards withdrew of Pacific subduction zone and the delamination of proto-subducted slab after the stage of pre-Cretaceous pre-rifting active continentoceanic plate margin. In this stage, the Nansha transcrustal layering-block started to move southeastwards on the Nansha transcrustal layer-sliding plane, meanwhile, the Andu-Bisheng and Liyue-Banyue basement layering-block slid on their upper-crust layer-sliding planes, and Xibu accretion zone was formed. Successively, it entered the stage of the mid-Eocene to early Oligocene, when NW-SE sea-floor spreading occurred in the southwest subbasin owing to the slip-line field initiated by the collision between the Indian and Eurasian plates, Zengmu foreland-basin started to develop in the same time. And in the stage of late Oligocene to early Miocene, near NS simple-shear extension and sea-floor spreading in the central subbasin of eastern South China Sea resulted from the south-southeastwards drawing-force of the mantle-flow. The crustal layering-blocks and the Miri accretion zone formed also in this stage.

南沙岩石圈新生代微板块及板内层块构造的动力演化过程，在多元动力等因素(如块体之外的欧-太-印三大板块运动边界力和地幔深部活动因素、块体内部软弱层滑面以及地球自转变化)控制下，大致经历了4个阶段的演化：从前晚白垩世的裂前活动陆-洋板块边缘阶段因太平洋俯冲带向东跃迁、原向NNW俯冲消亡的板片的拆沉、幔隆而进入晚白垩世-早始新世的隆升剥蚀、剪切伸展演化阶段，南沙超壳层块顺超壳层滑面祥东南运移、安渡-毕生与礼乐-半月基底层块沿上壳层滑面拆离，西布增生带形成；继而先后在中始新世-早渐新世期间受印-欧板块碰撞滑线场、地球自转加速影响出现西南海盆NW-SE向海底扩张和曾母前陆盆地的发育，和晚渐新世-早中新世期间南—东南向地幔流牵引造成的中央次海盆近NS向单剪伸展与海底扩张、壳体层块向南差异滑移、米里增生带形成；中中新世以来，印度-澳洲板块快速向北俯冲，构成今日南海格局。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。