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encapsulation 封裝 ;
(指將一些必要信息加在不同層次協議數據單元之前,Internet中的每一數據包的開始信息,將分別是實體層,IP層,TCP層,再至應用層) 封裝 ; (指將一些必要資訊加在不同層次協議數據單元之前,Internet中的每一數據包的開始資訊,將分別是實體層,IP層,TCP層,再至應用層) encapsulation 密封 encapsulation 封閉 封裝 encapsulation n 1: the condition of being enclosed (as in a capsule); "the encapsulation of tendons in membranous sheaths" 2: the process of enclosing (as in a capsule) Encapsulation \En*cap`su*la"tion\, n. (Physiol.) The act of inclosing in a capsule; the growth of a membrane around (any part) so as to inclose it in a capsule. [1913 Webster] 1. The technique used by layered protocols in which a layer
adds header information to the protocol data unit (PDU) from the layer above. As an example, in Internet terminology, a packet would contain a header from the physical layer, followed by a header from the network layer (IP), followed by a header from the transport layer (TCP), followed by the application protocol data. 2. The ability to provide users with a well-defined interface to a set of functions in a way which hides their internal workings. In {object-oriented programming}, the technique of keeping together data structures and the methods (procedures) which act on them. (1998-09-07)
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