Abstract: An aeronautical aluminum alloy minimum-quantity-lubrication milling machining device includes a machine tool worktable and spindle connected with a machine tool power system. The spindle is connected with a tool holder that is fixed with a cutting tool. The machine tool worktable is provided with a machine tool fixture, the tool holder is connected with a minimum-quantity-lubrication mechanism, the machine tool fixture includes a fixture body that is fixedly provided with a limit block for contact with two adjacent side surfaces of a workpiece, the fixture body is provided with a plurality of clamping elements capable of pressing the workpiece against an upper surface of the fixture body, and a top of the clamping element is provided with a detection member for detecting a relative position between the clamping element and the spindle. The device can avoid interference and contact between a nozzle and the clamping element.

Abstract: A method and a system for video surveillance based on an interactive voice response IVR technology, including: receiving, by a video IVR system, a video call request sent by a video terminal, where the video call request includes an identifier of the video terminal and a video call service code; querying, according to the identifier of the video terminal and the video call service code, a video surveillance system for a surveillance device list which corresponds to the video terminal; receiving, the surveillance device list which corresponds to the video terminal and is returned by the video surveillance system, and providing the surveillance device list for the video terminal; and obtaining, according to selection for the surveillance device by the video terminal, a media stream surveilled by the selected surveillance device from the video surveillance system, and providing the media stream for the video terminal for playing.