The hook is lowered to the ground so that the component can be serviced or replaced.
钩子降至地面，使得部件可以被维护或更换。
When the component assembly is serviced, updating the common configuration file provides updated configuration information to all applications that use the assembly.
当元件组件受到服务时，更新一般组态档会对所有使用该组件的应用程序提供更新的组态资讯。
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