screen·ing /ˈskrinɪŋ/
  篩選;篩選制板;遮罩;遮蔽
  screening
  篩選; 屏蔽
  screening
  篩選
  Screen v. t. [imp. & p. p. Screened p. pr. & vb. n. Screening.]
  1. To provide with a shelter or means of concealment; to separate or cut off from inconvenience, injury, or danger; to shelter; to protect; to protect by hiding; to conceal; as, fruits screened from cold winds by a forest or hill.
     They were encouraged and screened by some who were in high commands.   --Macaulay.
  2. To pass, as coal, gravel, ashes, etc., through a screen in order to separate the coarse from the fine, or the worthless from the valuable; to sift.
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  screening
       n 1: the display of a motion picture [syn: showing, viewing]
       2: fabric of metal or plastic mesh
       3: the act of concealing the existence of something by
          obstructing the view of it; "the cover concealed their
          guns from enemy aircraft" [syn: cover, covering, masking]
       4: testing objects or persons in order to identify those with
          particular characteristics