open·work /ˈopənˌwɚ/
  透孔織物
  O·pen·work n.
  1. Anything so constructed or manufactured (in needlework, carpentry, metal work, etc.) as to show openings through its substance; work that is perforated or pierced.
  2. Mining A quarry; an open cut.
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  openwork
       n : ornamental work (such a embroidery or latticework) having a
           pattern of openings