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n.脉；[解剖]静脉
n. (Vena)人名；（罗、塞、意）韦娜（女名），韦纳
1、superior vena cava───上腔大静脉；上腔靜脈
2、vena cava───n.腔静脉；[脊椎]腔静脉
3、inferior vena cava───[解剖]下腔静脉
4、vena contracta───射流紧缩，缩脉；缩脉；流颈
1、The objective is to explore the roles of color Doppler vena contracta in the evaluation of mitral regurgitation grading.───目的是探讨彩色多普勒静脉收缩术在评估二尖瓣反流分级中的作用。
2、No wonder we still love to experience the thrill of a well-launched parabolic projectile - vena cartoon of an angry bird.───怪不得我们现在还是激动于抛物线投掷的乐趣，即使只是一只卡通的愤怒小鸟。
3、Conclusion: Meseteric vena-occlusive necrotic bowel disease has no characteristic symptoms and is easily misdiagnosed.───结论：肠系膜静脉血栓并肠坏死症状无特异性，容易误诊。
4、Venous circulation is the part of your overall blood circulatory system that involves veins, like the vena cavae and pulmonary veins.───静脉循环XiTong也是血液循环XiTong的一个子XiTong，主要包括各种静脉（比如腔静脉和肺静脉等）。
5、Lifesavingimplant. A graft bypasses the heart, redirecting low-oxygen blood from the inferior vena cava directly to the pulmonary artery.───挽救性命的移植术：心脏旁路支架，可以使含氧低的腔静脉直接输送到肺动脉。
6、The two main veins that connect to the heart are called the vena cava.───两个与心脏相连的主静脉叫做大静脉或腔静脉。
7、The inferior vena cava carries used blood from the lower parts of your body.───而下腔静脉的作用是输送来自于身体下半部分“用过的”血液。
8、Objective To evaluate the feasibility and safety of a new retrieval inferior vena cava filter in an animal model.───目的探讨一种可取出式下腔静脉滤器的可回收性和安全性。
9、Objective to probe into the value of CDFI in diagnosis of acute deep lower vena thrombosis.───目的探讨彩色多普勒超声在急性下肢深静脉血栓诊断中的应用价值。