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Objective To study the pathogenesis and clinical symptoms of patient with central type of interˉvertebral disc protrusion manifested intermittent claudication as the mainly clinical presentation,so as to reach the early diagnosis and treamtmet in time.Methods In58cases,X-ray film,lumbar discography,CT examinations were done to confirm the diagnosis,then total laminectomig was performed to reveal the vertebal body without involving small arˉticular process.Intervertebral tissue was excised via duralotomy approach in2cases in remaining56cases,through right and left longitudinal syndesmotomy to resect the nucleus pulposus of lumber intervertebral disc.Results In58cases treated by operation,the operative findings were in according with the X-ray and CT examinations ofpre-opˉeration.

目的 对呈间歇性跛行主要临床表现的中央型椎间盘突出症患者的发病机制和临床表现进行研究，达到早诊断、早治疗方法对58例患者进行X线拍片，腰椎碘造影，CT扫描检查，根据检查结果确诊后，采用全椎板切除显露椎体，未累及小关节突，2例经硬膜切开入路切除间盘组织，余56例经从双侧用神经剥离子带棉片将硬脊膜带神经根向中线剥拉至显露圆形突出物止，分别从左右纵韧带摘除髓核。

OBJECTIVE: To report and analyze the clinical features of anomalous synkinetic movements related to ocular muscles caused by abnormal innervations, as well as to classify them according to the same neuromuscular nerves.

目的：报告并分析眼运动神经异常支配造成的眼和眼或眼与其他非眼肌肉之间的异常联合运动临床特点，并按发生的肌肉归属神经进行分类。

Therefore I want to urge Taipo residents who do not agree on artificial beach to voice out and express their opinion to the Advisory Council on the Environment as well as to the district council.

故此， 我特别想呼吁大埔街坊帮忙。若你们也不认为你们想要这个龙尾人造滩，请发声–请按这里指示向环评署发表意见，并也请向大埔区议会发表意见。

Due to the complexity of the cell jitter, the NonSynchronous Tining Recovery methods are currently not mature With the emphasis being given to the Class A CBR traffic, this paper analyzes the performance of the queueing delay and cell jitter at the source node and intermediate nodes, and discusses the Source Timing Recovery at the destination node in ATM networks Firstly, this paper presents a description of the cell jitter of CBR traffic, and gives the definitions of two kinds of cell jitter regarding the Source Timing Recovery for CBR traffic Then, by using exact mathematical models and analysis methods, this paper analyzes the impact of the factors, such as the capacity of the queueing buffer, the randomness, the deterministic nature and the correlation in cell arrivals of the background traffic sources, on the queueing delay and cell jitter performance of the CBR traffic through Statistical Multiplexitng To obtain an insight into the power spectral distribution and look for better schemes for the depression and filtering of the cell jitter, within the analyses we succeed deriving the power spectrum of the cell jitter for CBR traffic Hence, not only the power spectral distribution of the cell jitter can in the frequency domain be qualitatively understood, but also can the rms (root-meansquare) value of the cell jitter be quantitatively obtained so as to more accurately measure the amplitude of the jitter In the end-to-end performance analysis of the queueing delay and cell jitter, we propose a kind of quasi-periodic cell stream model to characterize the jittered CBR traffic, and present an initial queueing analysis of the CBR traffic following such a model at a generic intermediate node Additionally, we briefly discuss the buildout/playout and Source Timing Recovery functions of the destination node Finally, regarding the Source Timing Recovery of CBR traffic, this paper systematically discusses several important principles of the cell jitter filtering and depression reported in the literature, introduces several implementation schemes of the Source Timing Recovery e.

由于信元抖动的复杂性，非同步定时恢复方法目前还很不成熟。本文针对A类CBR业务流在ATM网络源节点和中间节点的排队时延和信元抖动性能，以及在目的节点的源定时恢复问题作了较为全面的研究。首先，文中描述了CBR业务流的信元抖动，并具体地给出了两种与CBR业务源定时恢复有关的信元抖动的定义。然后，采用了精确的数学模型和分析方法，有针对性地分析了业务背景中信元到达的纯随机性、确定性和相关性以及排队缓存器容量等因素对CBR业务流经过统计复用后的排队时延和信元抖动性能的影响。为了了解信元抖动的功率频谱分布和寻求更好的抑制和滤除抖动的方法，在性能分析中，我们成功地完成了CBR业务流信元抖动的功率谱分析，使得不但可以从频域定性地认识信元抖动的能量分布特性，而且还可以定量地求出信元抖动的均方根值(rms：root-mean-square)，以更为准确地衡量抖动的大小。在CBR业务流的多节点端-端排队时延和信元抖动性能分析中，我们提出了一种准周期性(quasi-periodic)信元流模型来描述感染了信元抖动的CBR业务流，并基于这一模型进行了CBR业务流中间节点的初步排队分析。

But other side , Dark value of oneself yet possess underrating the point , In immediate future the real scenery that lived on the community upper levels at that time may be out of probe into out , Secondly abstracting the element differentiateed Si in the poetry seeps into and also reacts mankind's necessity to the art effect of thinking development , As to taut with dark to spring up is the best instance verse speaking walk but scenery with hills and waters verse coming , It produces the regression to the image as displaying the poetry , But make known the sublimation in the one kind taller step that the poetry was produced , In immediate future in some essence that adjust to conceal the scenery with hills and waters image after pursues , But hoop of this middle , Ought to be undoubtedly that the dark word verse adjust in the firsthand poetry natural abandoing of image , This is that the dark word verse is living at the value location on the history of poetry .

而另一方面，玄言诗自身的价值仍有不可低估之处，即一可以从中探究出当时社会上层生活的实景；二是诗歌中抽象思辨因素的渗入也反应了人类思维发展对艺术影响的必然，至于紧随玄言诗步履而来的山水诗的兴起就是最好的例子，它既体现了诗歌创作对物象的回归，又反映了诗歌创作的一种更高层次上的升华，即对隐藏在山水物象之后的某种精神上的追求，而这中间的一环，无疑应是玄言诗对原始诗歌中朴质物象的舍弃，这才是玄言诗在诗史上的价值所在。

But other side , Dark value of oneself yet possess underrating the point , In immediate future the real scenery that lived on the community upper levels at that time may be out of probe into out , Secondly abstracting the element differentiateed Si in the poetry seeps into and also reacts mankinds necessity to the art effect of thinking development , As to taut with dark to spring up is the best instance verse speaking walk but scenery with hills and waters verse coming , It produces the regression to the image as displaying the poetry , But make known the sublimation in the one kind taller step that the poetry was produced , In immediate future in some essence that adjust to conceal the scenery with hills and waters image after pursues , But hoop of this middle , Ought to be undoubtedly that the dark word verse adjust in the firsthand poetry natural abandoing of image , This is that the dark word verse is living at the value location on the history of poetry .

而另一方面，玄言诗自身的价值仍有不可低估之处，即一可以从中探究出当时社会上层生活的实景；二是诗歌中抽象思辨因素的渗入也反应了人类思维发展对艺术影响的必然，至于紧随玄言诗步履而来的山水诗的兴起就是最好的例子，它既体现了诗歌创作对物象的回归，又反映了诗歌创作的一种更高层次上的升华，即对隐藏在山水物象之后的某种精神上的追求，而这中间的一环，无疑应是玄言诗对原始诗歌中朴质物象的舍弃，这才是玄言诗在诗史上的价值所在。

Dashwood, she preferred going directly to the cottage to being a visitor at Barton Park; and she relied so undoubtingly on Sir John's description of the house, as to feel no curiosity to examine it herself till she entered it as her own.

因为达什伍德太太与米德尔顿夫人素昧平生，她宁肯立即住进乡舍，而不愿到巴顿庄园作客。约翰爵士将房子描述过了，对此她深信不疑，无心再去亲自查看，等搬进去再说吧。

And whatever this half consume is as completely lost, as to any permanent effect on the national resources, as if it were consumed unproductively.

因此，就国家资源所受到的持久性影响来说，这一半生产性劳动者所消费掉的物品，同非生产性消费一样，被白白浪费掉了。

On the basis of combining theory and practice as well as analyzing the necessities and urgence of strengthening the professional guide, training and introduction of community, this paper proposes that it should strengthen in stages three functions of community, join network and form superiority,develop cities' community services,make community the base of reserving,training and providing talents, so as to advance re employment engineering.

理论与实际结合，分析论证强化社区职业指导、职业培训和职业介绍的必要性与迫切性，提出分级健全社区&三大功能&，联成网络，形成优势，进一步发展城市社区服务，使社区成为蓄备人才、培训人才、输送人才的基地，推进再就业工程的建议

It discusses the daily drainage design from system,tube materials,appendix,venthole, tube layout and pavement as well as rain-water drainage,and analyzes problems which should be noticed during drainage design,so as to improve the general designing level of ours.

对日常的排水设计从系统、管材及附件、通气管、管道布置及敷设和屋面雨水的排出等方面进行了论述，并分析了设计中应注意的问题，以完善和提高整体设计水平。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。