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决然跟着孙铁往山中走去。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.It is emphasized here that the request on the link can be a chain, a tree or a ring. The pattern itself does not restrict this and needs to be implemented by ourselves. At the same time, at a time, commands are only allowed to be passed from one object to another, not to multiple objects.Modify the specified rules of the specified chain in the specified table. The-R option means to modify the rules in the corresponding chain. When using the-R option, the corresponding chain and the sequence number corresponding to the rules should be specified at the same time, and the original matching conditions in the rules cannot be omitted.The hotel as a whole is relatively simple and unsophisticated, with spacious, neat and slightly old rooms.剧照