Since the work belongs to the type of window service, it has involved extensive, policy-oriented duties and responsibilities, more contact persons and so on.

因此项工作属于窗口服务类型，它具有涉及面广、政策性强、责任大、接触人员多等特点。

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Clearing a path to the market soon will be the Winbot 7, a compact machine billed by manufacturer Ecovacs Robotics as the first full-service window-washing robot.

WSJ: Window-Washing Robots Rise; Humans Balk

Its terrain is window-dressing in the service of a strictly scripted guided tour of a story.

FORBES: 'Call Of Duty: Black Ops 2' And The Wasted Wilds Of Its Beautiful Terrain

The window-cleaning division of Service Employees International Union Local 32BJ, one of the largest unions, counts 800 members.

WSJ: Window-Washing Robots Rise; Humans Balk