结果显示，胎儿组织钙含量是一非稳态变量，是时空环境的函数。
Results showed that the calcium content in fetal tissues was an unstable variable, and it was a function of spatiotemporal factors.
本文将在周期性负载下稀土永磁同步电动机持续稳态的动态特性的状态变量法与相关技术这两种现代分析方法有机地结合在一起。
The state variables analysing method and interrelation analysing method are combined effectively in calculating the sustained steady state dynamic performance of REPMSM under periodical load.
在该分析模型的基础上，推导出了电机绕组满足的以绕组磁链为状态变量的微分方程，建立了电机稳态运行分析的数学模型。
Based on the model, a steady state analysis model of the translational motor is founded with the state equations established which takes the flux linkages of the phase windings as state variable.
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