Methods. A 3-dimensional, nonlinear finite element model of a lumbar spinal segment L4-L5 was used.
方法：我们使用了一个关于L4-L5腰椎的3维非线性有限元素法的模型。
METHODS: Rat model of acute myocardial ischemia induced by pituitrin was used in this study, and the lift of st segment in ECG was used as the index of myocardial ischemia.
方法：应用垂体后叶素致大鼠急性心肌缺血模型，以心电图上ST段的抬高作为心肌缺血的指标。
METHODS: Rat model of acute myocardial ischemia induced by pituitrin was used in this study, and the lift of st segment in ECG was used as the index of myocardial ischemia.
方法：应用垂体后叶素致大鼠急性心肌缺血模型，以心电图上ST段的抬高作为心肌缺血的指标。
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