re·seau /reˈzo, rɪ-/
  網格,網狀物
  Ré·seau n.  A network; specif.: (a) Astron. A system of lines forming small squares of standard size, which is photographed, by a separate exposure, on the same plate with star images to facilitate measurements, detect changes of the film, etc. (b) In lace, a ground or foundation of regular meshes, like network.
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  reseau
       n 1: a net or mesh foundation for lace
       2: a network of fine lines used by astronomers as a reference
          for measurements on star photographs
       [also: reseaux (pl)]