求翻译：【摘要】：【目的】研究大型机组系统的可用度，在一定程度上对大型机组可靠性管理工作水平提供理论依据。【方法】利用马尔科夫过程理论，提出了大型机组三状态可靠性模型，根据Chapman-Kolmogorov方程，建立了线性方程组。【结果】通过求解方程组，绘制出状态转移图，计算出系统处于各种状态下的概率和系统可用度。【结论】根据大型机组处于三状态的概率，进一步代入数据便可得出相应的可用度，为维护管理工作提供方法依据。是什么意思？

The "Summary": "purpose" generators of system availability study, partly to provide the theoretical basis of the large generating unit reliability management level. "Method" based on Markov process theory, proposed a large generating unit reliability model of three-State, according to the Chapman-Kolmogorov equation, the establishment of a linear equation. "Results" by solving systems of equations, draw a State transition diagram, to calculate the probability under the system in various States and system availability. "Conclusions" generators in the three State according to the probability that the further into the data they can reach the appropriate availability, provides methods for the maintenance and management work basis.