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《过分水岭》讲的是一条无情的溪流穿越山涧，山水相会三日无意间产生感情，到了分开之日便有了惜别之情。欢笑声、祝福声、吉庆的鼓乐声，连成一片。12. Code: Hi.Avoid coupling the sender and receiver of the request, make it possible for multiple objects to receive the request, connect these objects into a chain, and pass the request along this chain until an object processes it. This is the responsibility chain mode. In the responsibility chain mode, it is possible for each object to process the request, thus realizing decoupling between the sender and receiver of the request. At the same time, the responsibility chain mode simplifies the structure of the object, which makes each object only need to refer to its successor without knowing the whole chain, thus improving the flexibility of the system and making it more convenient to add new request processing classes. However, we cannot guarantee that all requests can be processed in the responsibility chain, and it is not conducive to observing runtime characteristics.汉王这次一定会对你另眼相看的。Shall indicate the shape size, aperture, number of various holes and tolerance requirements; Machining method of shape and aperture; Specification of additional process requirements, such as V-groove opening, hole milling, chamfering, plate punching, process edge, etc.