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两个与心脏相连的主静脉叫做大静脉或腔静脉.
The two main veins that connect to the heart are called the vena cava.
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她将麻醉剂直接注入手臂的主静脉.
She pumped the stuff right into the mainline.
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我的丈夫——被医学诊断者——经过测试后发现患有主静脉stenosis。
My husband, diagnosed with MS, was tested and shown to have major jugular venous stenosis.