The first level consists of the performance object, which is a unit that can model a physical device or abstract component in a system.

第一级包括性能对象，它是可以为物理设备建模，或者抽象系统中组件的单元。

youdao

The paper set up a model of hydro unit maintenance , whose object is the max income in the life period of unit, considering the economic factors of the power market and restrictions of hydro units.

本论文建立了水电机组最优检修间隔模型，以机组在寿命期内的收益最大为目标函数，考虑了电力市场的经济因素和水电机组的约束条件。

youdao

In this model, a simulative object is considered the basic unit, and complex events' time-stamp is discussed, which is used as a proof to make parallel events be processed correctly and effectively.

在该模型中引入仿真对象并将其作为仿真处理的基本单元；引入事件发生的时间属性并将其作为时序的依据，使并行执行的事件能被正确有效地处理。

youdao