An electrical wave traverses the heart each time it beats, co-ordinating the contraction and relaxation of the chambers that pump blood around the body.
随着心室的收缩和舒张将血汞到了全身，心脏跳动一次，电波横穿心脏一次。
Objective To evaluate the safety of ultrasonic standing wave blood separation technology from two point of view: rheology and blood cell composition.
目的：从血液流变学和血细胞成分两方面来评价超声驻波血细胞分离机的安全性。
Objective To study the relativity of blood oxygen content and blood oxygen wave of brain in patients with chronic cardiac insufficiency.
目的研究慢性心衰病人脑组织血氧含量及血氧变化波形相关性。
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