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2.4. 1 Dimension requirements for positioning holesDoS (Denial of Service), its principle is very simple, is to use the machine in our hand to send requests to the server, if the server in our hand has better performance than the server's host in all aspects, then when we send a large number of requests to the server, occupying the server's resources, resulting in the server has no ability to process other user requests.After the build is successful, view the newly built image:In the traditional subway construction, collision inspection can only be implemented after the design drawings of various specialties are summarized, which is time-consuming and labor-consuming and affects the project progress. Using BIM technology, collision inspection can be carried out on the pipelines of the building before construction, clearance and pipeline arrangement scheme can be optimized, hard collision can be eliminated and soft collision can be avoided as much as possible, and error loss and rework can be reduced.Ten fairies(2) Make-up: When the shot is missed, the player jumps up in the air to make up the ball into the basket.郑氏手一顿，哼哼轻笑两声，道：好像真的哦。