adj.空的；腔静脉的
Pneumomediastinum may cause caval obstruction. 纵隔积气可能引起腔静脉梗阻。
A caval donato non si guarda in bocca. 受赠之物，勿论短长。
Experience to Introduce The Lead Through Tortuous, Prolonged or Anomaly Superior Caval Vein into Chamber of The Heart. 静脉畸形、迂曲、狭窄时永久起搏导线置入的方法探讨。
If superior vena caval obstruction lies above the azygosvein, it acts as a bypass collateral to the right atrium. 如果上腔静脉阻塞位于奇静脉之上，奇静脉就成为一条通入右心房的旁路侧支循环。
Grassi CJ. Inferior vena caval filter: analysis of five currently available davices. AJR. 156:813. 任安，姜卫剑，黄振国，等.
Objective:To explore the treatment of Superior Vena Caval Syndrome caused by tumor. 目的:对肿瘤所致上腔静脉综合征的治疗进行探讨。
n.(车或马的)队列；系列；连续
n.骑兵(队)
n.骑兵
骑兵
