Results:Superior ophthalmic vein was consisted of supraorbital vein and communicatingbranch of angula vein.
结果:①眼上静脉由眶上静脉支和内眦静脉交通支组成。
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Fig 6 Case 15. Persistent left superior vena cava, the communicatingbranch between the bilateral superior vena cava.
图6病例15,永存左上腔静脉,双侧上腔静脉间见交通支。
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Meanwhile, this can still provide a concrete probability background for abstract mathematics questions and build up some communicating between every mathematics branch.