碳化物一种二元化合物，由碳和一个电正性的元素，尤指钙，组成。
A binary compound consisting of carbon and a more electropositive element, especially calcium.
比起铅来，金属锡的电正性没有二氧化锡的电负性强，所以无法产生可用的电位差。
Metallic tin is not electropositive enough compared with the electronegativity of its oxide to deliver a useful potential difference.
文中用辅助变量法和LILC定阶准则结合来估计电液位置和力偶系统的阶和参数，根据估计参数的渐近正态性确定模型的子阶和时滞。
The instrumental variable method and LILC criterion are used to estimate the order and parameter of electro-hydraulic position and force coupled system.
观察两组患者心脏电生理指标、血流动力学恢复、正性肌力药物用量、心肌细胞超微结构和心肌酶浓度变化等。
Cardiac electrophysiologic data, recovery of hemodynamics, inotropic medicine dosage, myocardial ultrastructural changes and concentration of myocardial enzymes were assessed.
观察两组患者心脏电生理指标、血流动力学恢复、正性肌力药物用量、心肌细胞超微结构和心肌酶浓度变化等。
Cardiac electrophysiologic data, recovery of hemodynamics, inotropic medicine dosage, myocardial ultrastructural changes and concentration of myocardial enzymes were assessed.
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