back·bone /-ˈbon, ˌbon/
 脊椎,志氣,骨幹,支柱   ;  主幹,(網絡中主要計算機間的連接線路, 在網絡主幹上有一些連著局域網絡的分支)


 back·bone /-ˈbon, ˌbon/ 名詞
 主鏈(大分子),脊柱,骨架,長鏈結構,骨幹


 backbone
 基桿


 backbone
 基幹


 Back·bone n.
 1. The column of bones in the back which sustains and gives firmness to the frame; the spine; the vertebral or spinal column.
 2. Anything like , or serving the purpose of, a backbone.
    The lofty mountains on the north side compose the granitic axis, or backbone of the country.   --Darwin.
    We have now come to the backbone of our subject.   --Earle.
 3. Firmness; moral principle; steadfastness.
    Shelley's thought never had any backbone.   --Shairp.
 To the backbone, through and through; thoroughly; entirely.  “Staunch to the backbone.”

 ◄ ►


 backbone
      n 1: a central cohesive source of support and stability; "faith
           is his anchor"; "the keystone of campaign reform was the
           ban on soft money"; "he is the linchpin of this firm"
           [syn: anchor, mainstay, keystone, linchpin, lynchpin]
      2: fortitude and determination; "he didn't have the guts to try
         it" [syn: grit, guts, moxie, sand, gumption]
      3: the series of vertebrae forming the axis of the skeleton and
         protecting the spinal cord; "the fall broke his back"
         [syn: spinal column, vertebral column, spine, back,
          rachis]
      4: the part of a network that connects other networks together;
         "the backbone is the part of a communication network that
         carries the heaviest traffic"