查询词典 occlusion

The function of the space maintainer is to preserve arch length following the premature loss of a primary tooth. The space maintainer allows the permanent tooth to erupt unhindered into proper alignment and occlusion.

空间维持器的主要功能是要在乳牙提早丧失时，能维持牙弓的空间，以提供后续萌发的恒齿能有适当的排列及咬合。

Chronic cerebral ischemia model was produced by occlusion of one carotid artery and pneumogastric nerve in mice. The step down test was adopted to investigate the effect of EDT on the memory impairment.

结扎单侧颈总动脉及迷走神经造成小鼠慢性脑缺血模型，用跳台法研究EDT对记忆障碍的影响。

There were 9 cases with complete occlusion of portal vein trunk and 7 cases with incomplete thrombosis.

材料和方法一、一般资料1998年 12月至 2 0 0 1年 12月间住院治疗的 16例患者，男 15例，女 1例，年龄 2 8～ 75岁，平均 5 4岁。

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）。

Methods:The occlual contact characters of 32 cases with TMD and 30 controls were measured with T-Scanll system in the intercuspal occlusion position, the protrusive movment as well as lateral movement.

材料和方法：应用T—ScanⅡ咬合分析仪对32例TMD患者进行牙尖交错位、前伸及侧方运动的咬合检查并与正常组对照。

Results The results showed that Erigeron breviscapus pellets significantly increased brain blood flow and prolonged mouse pursiness time;Erigeron breviscapus pellets markedly inhibited ADP-,AA-,or PAF-induced platelet aggregation in vitro or in vivo,and prolonged the occlusion time of electrically-stimulated carotid artery.

结果 灯盏花颗粒显著增加脑血流量并延长小鼠断头后喘气时间；灯盏花颗粒在体内外均明显抑制AA、ADP及PAF诱导的血小板聚集功能的同时还显著延长电刺激大鼠颈动脉的血栓形成时间。

Even among patients with type 1 occlusion, when the timing of CT is very early, the extent of hypodensity may be restricted to a part of the putamen or the insula.

1型大脑中动脉闭塞的患者，如果进行脑部CT检查的时间过早，低密度区的范围可能会仅限于岛叶或部分壳核（I级早期CT征象或II级早期CT征象）。

The investigation was carried out based on the standard of individual normal occlusion using random sampling.

采用随机抽样的方法，并以个别正常为标准进行本项调查。

Long term residual water freezing the head, which led to stagnation of qi stasis, meridians occlusion, Yu Cheng suffering from illness, especially in winter alpine Cross, more ill, have been identified as one important reason for chronic headache.

长期残余水冻结的头部，导致血瘀气滞的疾病，经络阻塞，谷车嗯痛苦，尤其是在冬天高山交叉，多生病，已被确定为一慢性头痛的重要原因。

Secondly, robust statistics is introduced to handle the occlusion in computing observation likelihood, and affine transformation based similarity measurement is used to tackle the change of pose of target. 3. To track the fast target, we propose an improved particle filter based visual tracking method.

在两阶段增强粒子滤波跟踪阶段，利用卡尔曼滤波结合最新的观测对目标状态进行更新，通过观测似然的计算实现对目标进入、退出场景以及相互遮挡事件进行处理。

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。