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Children viral myocarditis dobutamine stress echocardiography myocardiac contractive function .

儿童病毒性心肌炎多巴酚丁胺负荷超声心动图心肌收缩功能。

Valuation of left ventricular contractive function using mr images .

以磁共振影像评估左心室收缩功能之究。

Ability of battle line of contractive and state-owned economy raises state-owned economy to command force .

收缩国有经济战线才能提高国有经济控制力。

This kind of wave may increase the excitability of muscular tissue and have a fine stimulative and contractive effect on the striated muscle .

此波不易产生适应，能提高肌肉组织的兴奋性，对横纹肌有良好的刺激收缩作用。

Say commonly , tachycardia or dou xingxin had used occurrent antrum sex delay and arrhythmia , abiogenesis period before contractive , to the heart the quantity that discharge blood and human body do not have how old influence .

一般说来，偶然发生的窦性心动过速或窦性心动过缓及心律不齐，偶发的期前收缩，对心脏排血量及人体没有多大的影响。