闭塞

Firstly, the establishment of model requires sophisticated neurointerventional techniques and costly interventional materials(sacculus, minikin circlip ring, endovascular electrocoagulation), it not only consumed time but also increased the resesrch expense ; Secondly, although the Massoud model is the first successful model that contain the nidus, but it is far from mimicking the high-flow fistulae frequently observed in a brain AVM; Thirdly, the rapid spontaneous thrombosis result in fistula occlusion in a short time;Fouthly, the model's natural course and the long–term patency of fistula are unclear;Currently the model is only used for the short-term research.

但Massoud模型目前存在以下主要缺点：第一，模型的建立需要复杂的神经介入技术和昂贵的介入材料(球囊、微弹簧圈、血管内电凝等)，操作费时，又大大增加了研究费用；第二，Massoud模型虽然首次具备了畸形血管团，但它远不是我们临床上常见的含有高流量动静脉瘘的脑AVM；第三，颈动静脉吻合口自发性血栓形成进而导致引流静脉闭塞的机率很高；第四，Massoud模型的长期自然过程和动静脉吻合口的长期通畅性尚不清楚，目前仅仅作为急性期模型。

Results The uterine artery of all cases by DSA confirmed that the uterine artery was enlargement, tortuous and circuity and leakage of.

结果 所有病例血管造影分别可见子宫动脉增粗、迂曲，6例造影剂外溢征，栓塞后造影示子宫动脉闭塞。

Results:50 patients with lesions associated with anterior descending artery was 35,and the right coronary artery 19,circumflex 10.26 patients with single-vessel disease,18 patients with double-vessel disease,and three lesions 6,the survival rate of PCI is 98%.we follow up from 6 to 40 months after surgery,Chest pain occurred again in 7 patients, 3 patients performed PCI, and 1 case had stent obstruction,1 case died of AMI.

结果：50例病变相关动脉为前降支35处，右冠状动脉19处，回旋支10处。单支病变26例，双支病变18例，三支病变6例；PCI成功率98%；术后随访6～40个月，7例再次出现胸痛发作，3例患者行PCI术，其中1例为原有支架闭塞；急性心肌梗死死亡1例，为心肌梗死后心功能衰竭。

In some areas, the school authority gives less significance to the subject reformation including arts. There are a lot of problems existing not only in limited class frequency, teaching resources and latest information, but also in poor salary, low rank of teaching faculty, low scientific and research level of art and new course training have not received a good result. Under this circumstance, the development of basic art education has been badly affected, and at the same time, the quality of human's foil and harmonious development has been destroyed.

由于甘肃经济条件的制约以及长期以来形成的教育观念的问题，在基础美术教育阶段，有些地区学校领导对课程改革和美术学科其重要性认识不够，美术开课率不足、不齐、美术教学资源缺乏、美术教育信息闭塞、美术教师待遇、职称落后，美术科研水平偏低，美术新课程培训形式化，这使得美术教师的教学信念不强，工作热情减低，学生学习的积极性也不够，这些问题的存在严重影响了甘肃省基础美术教育可持续发展，影响了人的全面和谐发展的素质教育要求。

It's not for the terribly shy or close-minded.

这不是对那些非常害羞和思想闭塞的人而言。

No manual adjustment is required, either ?occlusion is set when the pump head cover is closed.

完全不需要手动调节，而且当泵头的盖关闭的时候，会设置闭塞。

The book contains many case studies of countries at various points on the J curve, from closed to intransition, none of which—even relative successes such as India and South Africa—is unambiguously hopeful.

这本书包括了很多关于研究国家的案例，它们处在J曲线各式不同的点上，从闭塞的到取得阶段性成果的，里面没有一个－甚至象那些相对成功的印度、南非是明明白白有希望的。

This single house is located in a closed neighborhood, 30km. away from Buenos Aires.

这栋单体建筑坐落在距离布宜诺斯艾利斯约30公里外的一个闭塞的乡村。

Meanwhile, the writers have systematically analysized the evolutional course of the fauna, and hold that the change of faunal content is closely related to ecologic environments.So as the evolution of Liujiang basin concerned, it went through the course from open basin near sea―closed basin―shallow water delta in that period.The stage disappearance of the fauna was caused by the development of shallow water delta.

同时作者分析了这个动物群的发生发展过程，认为生物群内容的变化与生态环境密切相关，当时柳江盆地经历了从开放型盆地―闭塞盆地―浅水三角洲的演化，浅水三角洲的发育导致了生物群的阶段性消失。

Depending on practice in the work of regulating calculation of chaohu lake water storage,this paper gives the introduction of method of calculating the no closedown lake design low water controled by the man.

本文结合巢湖水量平衡调节计算的工作实践，介绍了受人工控制影响的不闭塞湖泊设计枯水计算方法。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。