The operation semantics carries the original design data and actual operation process to express design intent and operation activity in conventional CAD systems.

操作语义包含原始设计数据和实际操作过程，表达CAD系统中的设计者意图和操作活动。

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To keep the competitive advantage, enterprise group of electric power industry needs to supervise and manage the operation activity and potential risks of its affiliated enterprises.

电力行业企业集团为了保持竞争优势，需要对下属企业经营管理活动和潜在风险进行监管。

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Enterprise assets is the economic resources with the monetary measurement and economic interest, which is owned or controlled by the enterprise. It's the premise of operation activity.

企业资产是企业拥有或者控制的、能以货币计量的、能给企业带来经济效益的经济资源，它是生产经营活动的前提条件。

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Iran has never permitted al Qaeda to have any activity or operation from or inside Iran.

WSJ: Bin Laden Son-in-Law Pleads Not Guilty

"Immediate checks revealed that the augering operation was associated with construction activity on land about 13 metres (42ft) above the top of the tunnel, " it added.

BBC: Construction drill came from site above rail tunnel

Two men have been arrested and a number of weapons recovered following a security operation in Londonderry targeting dissident republican activity.

BBC: Arrests on Northland Road, Derry, as weapons seized