A triangle is a basic drawing operation on which you can build more abstract operations.
三角形是基本的绘图操作，在此基础上可建立更为抽象的操作。
An operation is an abstract definition of an action supported by the service.
操作是被服务支持的行为的抽象定义。
Abstract: Intelligent alarm is one of the important function of power grid operation and dispatch.
摘要：智能告警是电网运行与调度的重要功能之一。
Abstract: the property operation stage is an important stage in the whole life of buildings.
摘要：物业运营阶段是建筑物全生命周期的主要阶段，也是耗能重点阶段。
Abstract: Operation structure is one of the most important parts of construction industry.
业务结构是建筑业产业结构中非常重要的组成部分之一。
Abstract: Operation structure is one of the most important parts of construction industry.
业务结构是建筑业产业结构中非常重要的组成部分之一。
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