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Bridging mode aims to decouple abstraction and implementation so that the two can change independently. That is to say, the bridging mode further abstracts the implementation details of the original base class into an implemented structure, and then transforms the original base class into an abstract hierarchical structure, thus realizing independent changes of the system in multiple dimensions. The structure diagram of the bridging mode is shown below.Main process points: establish civil engineering model, establish pipeline and equipment model, collision detection, collision elimination and deliveryTherefore, verification code can only be used as an auxiliary means, not as the main solution.Eight friends, all in a stable relationship, decide to venture into a game of sexual discovery by exchanging couples while trying to free themselves from their daily routine and add a spicy touch to their love life.Article 10 The secondary qualification of a fire safety assessment institution shall meet the following conditions: