本文对多元有理分式恒等定理，给出一种证明方法。
The essay points out a demonstration method to the poly-rational fraction identical theorem.
给出了满足某可变恒等式的半质环的交换性定理，推广了已有的结论。
In this paper, the author gave some commutativity theorems on semi-prime ring with variable identity, which is a generalization related.
建立了由函数恒等式所导出的函数项级数的求和定理，并给出了具体应用的实例。
A theorem for the summation of series expressed by function terms derived from function identities is established. Some examples in practical application are given.
以r22为制冷工质，根据质量守恒、动量守恒和能量守恒等热力学基本定理建立了空调冷凝器的稳态分布参数模型。
From basic thermophysical laws, a steady distributed parameter model of an air-conditioning condenser was constructed, in which R22 was taken as working fluid.
以r22为制冷工质，根据质量守恒、动量守恒和能量守恒等热力学基本定理建立了空调冷凝器的稳态分布参数模型。
From basic thermophysical laws, a steady distributed parameter model of an air-conditioning condenser was constructed, in which R22 was taken as working fluid.
应用推荐