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。
After checking and up to the grade, the buyer receive the goods and affix his signature or stamp his unit seal on the seller's delivery order.
验收合格后，需方收取货物并在供方出货单上签字或加盖单位印章。
The transmission-distribution cost is apportioned with stamp theory, which can get the unit power-supplying cost of direct power-purchase for large consumers.
采用邮票法对转运电费用进行分摊，得出大用户直购电的单位供电成本；
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