pen·e·tra·tion /ˌpɛnəˈtreʃən/
 滲透,侵透,侵入


 pen·e·tra·tion /ˌpɛnəˈtreʃən/ 名詞
 穿透,貫穿,滲透,滲入,穿入,針入度,刺度


 penetration
 穿透


 Pen·e·tra·tion n.
 1. The act or process of penetrating, piercing, or entering; also, the act of mentally penetrating into, or comprehending, anything difficult.
 And to each in ward part,
 With gentle penetration, though unseen,
 Shoots invisible virtue even to the deep.   --Milton.
    A penetration into the difficulties of algebra.   --Watts.
 2. Acuteness; insight; sharp discoverment; sagacity; as, a person of singular penetration.
 Syn: -- Discernment; sagacity; acuteness; sharpness; discrimination. See Discernment, and Sagacity.

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 penetration
      n 1: an attack that penetrates into enemy territory [syn: incursion]
      2: clear or deep perception of a situation [syn: insight]
      3: the act of entering into or through something; "the
         penetration of upper management by women"
      4: the ability to make way into or through something; "the
         greater penetration of the new projectiles will result in
         greater injuries"
      5: the depth to which something penetrates (especially the
         depth reached by a projectile that hits a target)
      6: the act (by a man) of inserting his penis into the vagina of
         a woman