资料来源 : pyDict

排水暗沟

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Spray \Spray\ (spr>amac/), n. [Cf. Dan. sprag. See {Sprig}.]
   1. A small shoot or branch; a twig. --Chaucer.

            The painted birds, companions of the spring, Hopping
            from spray, were heard to sing.       --Dryden.

   2. A collective body of small branches; as, the tree has a
      beautiful spray.

            And from the trees did lop the needless spray.
                                                  --Spenser.

   3. (Founding)
      (a) A side channel or branch of the runner of a flask,
          made to distribute the metal in all parts of the mold.
      (b) A group of castings made in the same mold and
          connected by sprues formed in the runner and its
          branches. --Knight.

   {Spray drain} (Agric.), a drain made by laying under earth
      the sprays or small branches of trees, which keep passages
      open.