自由基類分子 的英文怎麼說

中文拼音 [zìyóujīlèifēnzi]
自由基類分子 英文
free radicals
  • 自 : Ⅰ代詞（自己） self; oneself; one s own Ⅱ副詞（自然;當然） certainly; of course; naturally; willin...
  • 由 : causereason
  • 類 : Ⅰ名1 （許多相似或相同的事物的綜合; 種類） class; category; kind; type 2 （姓氏） a surname Ⅱ動詞...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 自由基 : free radical
  • 自由 : freedomliberty
  1. The natural formation in offspring of genetic combinations not present in parents, by the processes of crossing over or independent assortment

    重組父母沒有表現而其子嗣自然形成基因重組之現象，這是由於採用了雜交或獨立分類的方法而出現的
  2. The basic idea for hierarchy - based method is that creating and maintaining a tree of clusters and sub - clusters according to some kind of criterion to measure the distance of clusters, the procedure will be sloped until some terminal conditions are satisfied. hierarchical clustering method can be further classified into agglomerative and divisive hierarchical clustering, depending on whether the hierarchical decomposition is formed in a bottom - up or top - down fashion. most hierarchical clustering methods can produce the better results when the clusters are compact or spherical in shape. but they do not perform well if the clusters are any shape or there are outliers. a main reason is that the most hierarchical clustering methods employ medoid - based measurement as distance between clusters

    基於層次方法的聚類的基本思想足：根據給定的簇間距離度量準則，構造利維護一棵由簇利子簇形成的聚類樹，直至滿足某個終結條件為止。根據層次分解是自底向上還是自頂向下形成，層次聚類方法可以分為凝聚的（ agglomerative ）和分裂的（ divisive ） 。人多數層次聚類演算法在緊密簇或球形簇結構下能夠產生較好的聚類效果。
  3. After studying many relative books and combining with my own understanding, i write this thesis. this thesis includes : the meaning & characteristics of network security ; threatening & attacking that the computer network faces ; general measures to protect network security ; brief introduction, classification and relationships to network security technology ; general description and key technology of fire proofing ( package filtrate technology, delegating technology, nat technology ) ; the constructive type of fire proofing ( filter route ware, multi - port host computer, host computer screen, subnet screen etc. ) ; the examples of the constructive application of fire proofing ; the future developing trend of fire proofing technology and products, etc. so, net security and fireproof technology are the title of this paper

    綜上原因，本文將「網路安全」和「防火墻技術」組在一起形成本論文題目。本論文是筆者在研讀許多相關文獻並結合自己理解基礎上寫成的，主要內容為：網路安全含義及特徵、計算機網路所面臨的威脅和攻擊、保障網路安全的一般措施；網路安全技術的簡介、分類及關系；防火墻概論、防火墻關鍵技術（包過濾技術、代理技術、 nat技術等） ；防火墻的構建類型（過濾路由器、多埠主機、主機屏蔽、子網屏蔽等） ；防火墻的構建應用舉例；防火墻技術的未來發展趨勢及產品等。
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