... 常态分配 normal distribution 正常双工 normal duplex 正规双面打印 normal duplex printing ...
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normal duplex printing 正规双面打印
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Methods Profunda femoral artery hemodynamics was detected by duplex ultrasonography in 34 normal artery limb and 20 superficial femoral artery occlusive limb.
方法应用双功彩超对34条正常动脉的肢体与20条股浅动脉闭塞肢体的股深动脉进行血流动力学研究。
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