闭塞

The functional requirements of relay semiautomatic block system were analyzed and the drawbacks of relay semiautomatic block system were pointed out.

分析了半自动闭塞系统的功能需求，指出了继电半自动闭塞系统的不足。

Cases had non-isolated splenic vein occlusion, including 6 cases with interruptive thrombosis in PV-SV-SMV junction and 3 cases with stenosis or occlusion near PV trunk and SMV. 30 cases had been combined with twist vein collateral circulation and 6 cases with portal hypertension.

非孤立性脾静脉阻塞9例，其中PV—SV—SMV汇合部中断闭塞6例，近汇合部PV主干合并SMV狭窄、闭塞3例；伴有增粗扭曲的侧支循环静脉30例，合并区域性门静脉高压6例。

Cases had non-isolated splenic vein occlusion, including 6 cases with interruptive thrombosis in PV-SV-***V junction and 3 cases with stenosis or occlusion near PV trunk and ***V. 30 cases had been combined with twist vein collateral circulation and 6 cases with portal hypertension.

非孤立性脾静脉阻塞9例，其中PV—SV—***V汇合部中断闭塞6例，近汇合部PV主干合并***V狭窄、闭塞3例；伴有增粗扭曲的侧支循环静脉30例，合并区域性门静脉高压6例。

Cases had non-isolated splenic vein occlusion, including 6 cases with interruptive thrombosis in PV-SV-SMV junction and 3 cases with stenosis or occlusion near PV trunk and SMV.

非孤立性脾静脉阻塞9例，其中PV—SV—SMV汇合部中断闭塞6例，近汇合部PV主干合并SMV狭窄、闭塞3例；伴有增粗扭曲的侧支循环静脉30例，合并区域性门静脉高压6例。

This research was designed to investigate the efficacy and security of VEGF gene therapy in acute coronary occlusion of animal.

本研究的目的是建立冠状动脉急性闭塞的动物模型，评价血管内皮生长因子基因治疗急性冠状动脉闭塞的有效性和安全性。

PTCA was safe and effective in treating occlusive coronary artery disease, especially when the occlusive time was short.

结论闭塞性冠状动脉病变的PTCA是安全有效的，闭塞时间越短PTCA成功率越高。

Therefore, grade III CT signs were unequivocally predictive for type 1 MCA occlusion.

因此，III级早期CT征象（整个豆状核区均出现低密度）可以明确地提示：大脑中动脉主干的起始段发生了闭塞（1型大脑中动脉闭塞）。

The results showed that the proportion of aspirated pits in the respective earlywood and latewood of the air_dried sapwood was increased to 99% and 81%, while that of heartwood was also as high as 97% and 86% because most of the bordered pits were aspirated at its green state.

结果表明，边材和心材的生材经气干处理后，其中边材的早材和晚材纹孔闭塞率增加至 99%和81%，而心材因为其纹孔塞在立木时就已发生偏移，其早材和晚材纹孔闭塞率亦高，分别为 97%和 86

The incidence of lower extremity atherosclerotic plaque, arterial steno- sis and obliterlation of type Ⅱ diabetes in old age was apparently higher than that of control group. The incidence of atherosclerotic plaque was mainly involved in femoral and popliteal artery. While the incidence of stenosis and obliterlation were mainly involved in the distal arteries below popliteal artery, especially, anterior tibial artery, posterior tibial artery and pedis dorsal artery.

结果 糖尿病患者下肢动脉血管管腔的硬化斑块、狭窄和闭塞的发生率明显高于对照组；硬化斑块的发生率以股动脉及腘动脉最为常见，而管腔狭窄、闭塞率以及腘动脉以下的远端动脉血管最为明显。

Results: Thirty-seven of the 48 patients were symptomatic and 11 were asymptomatic.

结果：总共48个患者中，37例为症状性MCA闭塞，11例为无症状性闭塞。

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。