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椎动脉
释义
椎动脉
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医学
椎动脉
释
vertebral artery
椎动脉
脑血供的主要来源之一,起自锁骨下动脉第1段,向上穿第6至第1颈椎横突孔,经枕骨大孔进入颅腔,入颅后位于延髓的前外侧,左、右椎动脉逐渐靠拢,在脑桥与延髓交界处合成一条基底动脉,后者沿脑桥腹侧的基底沟上行,至脑桥上缘分为左、右大脑后动脉两大终支。
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coordinate matching of machining and measurement system
coordinate measurement
coordinate measurement quantity
coordinate measuring instrument
coordinate measuring machining
coordinate measuring -metrology
coordinate measuring technology
coordinate method
coordinate neighborhood
coordinate network
coordinate of a point
coordinate of a point on earth surface
coordinate of a vector
coordinate of reference station
coordinate of the pole
coordinate operator
coordinate origin
coordinate paper
coordinate perturbation
coordinate plane
coordinate quasigroup
coordinate reading microscope
coordinate representation
coordinate retrieval
coordinate ring
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