isovolumic英aɪzɒ'vɒluːmɪk美aɪzɒ'vɒluːmɪkCOCA²⁵⁴³³⁷⁺⁶ 基本例句 等容的,等体积的 Objective To investigate the features of left ventricular regional myocardial motion during isovolumic contraction IVC and isovolumic relaxation IVR, and their changes in acute ischemia. 目的探讨左室节段心肌在等容收缩期 IVC与等容舒张期 IVR长轴方向的运动特征及急性缺血时的变化规律。 cnki