As with all object - oriented models, CIM has several layers.与所有 面向对象 的模型一样, CIM分为几层.CIM definitions are written in Universal Modeling Language ( UML ).CIM的定义是用通用建模语言 ( UML ) 编写的.Another major element of CIM is computer ...
由四英里长的城墙围着的设防城镇a fortress town enclosed by four miles of ramparts对来自空中的攻击是无法设防的.There can be no real defence against attacks from the air.他们不能让这座城市不设防.They could not leave the city unguarded....