It is most dangerous in cases where blood clots travel through the body to the lung, blocking blood flow.
最危险的情况是血块在身体里运行到肺，堵塞血流。
By blocking the blocker-to football fans, adding an extra guard to your offensive line-the scientists got nitric oxide to open blood vessels again and increase blood flow, at least in lab animals.
通过阻塞这个障碍物，(对球迷来说，就是在你的进攻线上增加一个额外的防守)，科学家们用一氧化氮重新疏通了血管，并促进了血液流动。至少在实验室动物身上是如此。
By blocking the blocker—to football fans, adding an extra guard toyour offensive line—the scientists got nitric oxide to open blood vessels againand increase blood flow, at least in lab animals.
通过阻塞这个障碍物 (对球迷来说，就是在你的进攻线上增加一个额外的防守)，科学家们用一氧化氮重新疏通了血管，并促进了血液流动。至少在实验室动物身上是如此。
Results In the 8 cases who were managed by blocking whole liver blood flow, 1 case died due to grievous compound injury and 7 cases were cured.
结果8例合并肝静脉和（或）下腔静脉损伤的严重肝外伤病人，均采用全肝血流阻断处理，除1例合并其他损伤死亡外，其余均治愈。
Methods The pathologic structures of carotid atherosclerosis and the severity of blood flow-blocking were evaluated in 86 elderly patients with HP8500 color Doppler ultrasonic diagnosis system.
方法采用HP85 0 0型彩色多普勒超声诊断仪检测86例老年人颈动脉粥样硬化病变结构和血流受阻程度。
Methods The pathologic structures of carotid atherosclerosis and the severity of blood flow-blocking were evaluated in 86 elderly patients with HP8500 color Doppler ultrasonic diagnosis system.
方法采用HP85 0 0型彩色多普勒超声诊断仪检测86例老年人颈动脉粥样硬化病变结构和血流受阻程度。
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