闭塞

A simulated crevice corrosion cell was used to study the anolyte within crevice of Steel Cr18Ni9Ti in 3% NaCl sulotion.

采用摸拟缝隙的闭塞电池研究了0Cr18Ni9Ti 奥氏体不锈钢在3%氯化钠溶液中闭塞区内溶液的变化和 Cr存在的形态。

It also calculates theoretically the minimal time interval between two trains in quasi-moving-block signaling system and recommends approximate values for the length of coded digit track circuit.

在此基础上，针对当前应用广泛的基于数字轨道电路的准移动闭塞ATC系统进行了重点分析，详细讨论了数字轨道电路的原理、准移动闭塞系统的列控方式等内容，并对准移动闭塞下的最小列车追踪间隔时间进行了理论计算和分析，给出了数字轨道电路长度的推荐值。

Through a study of the cases of transit signaling system improvement in the world, this paper introduces the development of CBTC-MB, which is compared with the traditional Fixed Block, the principle, the functional block diagram and the technical standard of CBTC-MB, holds that this technology will be further developed and applied in urban mass transit.

通过国际上城市轨道交通列车控制系统发行的案例，介绍了移动闭塞在国际上的发展概况。比较了基於通信的列车控制的移动闭塞列车控制方式和传统闭塞方式之间的不同。介绍了移动闭塞的工作原理、组成及相关的技术标准。指出移动闭塞和CBTC必将在城市轨道交通中得到发展和应用。

The importance of starlike inner race no-flash die forging process of automobile constant velocity universal joint is introduced.

介绍轿车等速万向节星形套闭塞模锻工艺的必要性，通过数值模拟方法研究该工艺过程，研制出了可生产应用的闭塞模锻液压模架，并进行了工艺试验，研究结果对汽车关键零部件闭塞模锻工艺选择和模具设计提供了技术指导。

In Group A,one sample was found blood current tenuity at 14 days,one was occlusive in the femoral vein at 28 days ,the blood current ran into the vena cava posterior through the branch stem.The others were normal .And in Group B,there were one sample in each phase obliterative in the femoral vein because of relapse . For scanning electron microscopy result,Group A had a process which the injury of endothelial cells were from lower-grade to repair.

结果：1。影像学检查DSA下行血管造影见C、D两组术后第7天、14天和28天股静脉血流通畅，无明显充盈缺损或闭塞，A组第14天造影1只家兔股静脉血管纤细，血流尚通畅，第28天造影见1只家兔股静脉闭塞，血流从侧枝进入后腔静脉，其余时相股静脉血流通畅无明显异常；B组第7、14、28天造影各见1只家兔股静脉闭塞，其余未见明显异常。

Objectives: The most frequent anatomicopathological phenomenon in the early hours of the acute myocardial infarction is the total occlusion of the culprit coronary artery.

目的 急性心肌梗死（ acute myocardial infarction，AMI）早期最显而易见的病理解剖学现象为冠状动脉的完全闭塞，所以，既往人们的研究兴趣以及治疗策略大多集中于心外膜下的闭塞冠脉，并且已有多种成熟应用于临床的闭塞冠脉血运重建措施。

However, grade II CT signs did not always result from type 2 occlusion; 21.1% of patients with grade II CT signs had type 4 occlusion. When the MCA trunk is short, the lateral group of the lenticulostriate arteries may arise from the M2 segment[2, 12]. In such cases, type 4 occlusion may also involve the lateral or posterior part of the putamen.

但是，II级早期CT征象（部分壳核后外侧区出现低密度）并非仅仅由2型大脑中动脉闭塞（包括部分豆纹动脉在内的大脑中动脉主干闭塞，豆纹动脉部分受累）引起；本研究中，21.1%深部大脑中动脉分布区出现II级早期CT征象（部分壳核后外侧区出现低密度）的患者，是因4型大脑中动脉闭塞（大脑中动脉M2段闭塞）引起的；这些患者的大脑中动脉主干均很短，因此外侧豆纹动脉群（lateral lenticulostriate arteries）是由大脑中动脉M2段发出的；此时，4型大脑中动脉闭塞（大脑中动脉M2段闭塞）也可以导致壳核后部或外侧部出现低密度（深部大脑中动脉分布区II级早期CT征象）。

It is urgent to solve how to produce it efficiently and economically.In this paper, with the guidance of precision forming complex components, basing on the forming theory of obturated-extrusion, combining the technique of hot extrusion, considering the characteristics of steering knuckle, so the one-step precision obturated lateral-bend extrusion forming method and the two-step forming method are presented.

本文以复杂零件的精密成形为指导思想，根据闭塞挤压成形理论，结合热挤压技术，针对轿车转向节零件的自身特点，提出轿车转向节零件的闭塞侧弯挤压精密一步成形法和闭塞侧弯挤压精密预制坯与开式终锻相结合的两步成形法两种工艺。

PART 1 EXPRESSION OF MMP/TIMP IN SKELETAL MUSCLE OF ARTERIAL OCCLUSION DISEASE MODELS OF DOG'S HIND LIMB Objective To study the distribution changes of typeⅠand typeⅢcollagen in skeletal muscle of arterial occlusion disease models of dog's hind limb and the expression of MMP-2/TIMP-2 in skeletal muscle of arterial occlusion disease models of dog's hind limb. To investigate the significances of collagen metabolism and MMPs in skeletal muscle remodeling due to ischemia.

第一部分MMP/TIMP在犬后肢动脉闭塞性病变模型骨骼肌中表达的变化目的研究Ⅰ型胶原、Ⅲ型胶原在犬后肢动脉闭塞性病变模型骨骼肌的分布变化以及MMP-2、TIMP-2在犬后肢动脉闭塞性病变模型骨骼肌表达的变化，探讨胶原代谢和基质金属酶系统在缺血导致的骨骼肌重塑中的意义和作用。

Results Total occlusion of the aneurysms was obtained in 10 aneurysms, over 90% in 8 aneurysms, less than 90% in 1 aneurysm among 19 wide-necked aneurysms embolized by neuroform stent and guglielmi detachable coils.

结果以neuroform支架与电解可脱弹簧圈栓塞的动脉瘤中，10例完全闭塞，8例闭塞90％以上，1例闭塞90％以下。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。