sluice /ˈslus/
 水門,水閘,蓄水(vt.)泄洪,沖洗(vi.)奔流
 Sluice n.
 1. An artifical passage for water, fitted with a valve or gate, as in a mill stream, for stopping or regulating the flow; also, a water gate or flood gate.
 2. Hence, an opening or channel through which anything flows; a source of supply.
    Each sluice of affluent fortune opened soon.   --Harte.
    This home familiarity . . . opens the sluices of sensibility.   --I. Taylor.
 3. The stream flowing through a flood gate.
 4. Mining A long box or trough through which water flows, -- used for washing auriferous earth.
 Sluice gate, the sliding gate of a sluice.
 Sluice, v. t. [imp. & p. p. Sluiced p. pr. & vb. n. Sluicing ]
 1. To emit by, or as by, flood gates. [R.]
 2. To wet copiously, as by opening a sluice; as, to sluice meadows.
    He dried his neck and face, which he had been sluicing with cold water.   --De Quincey.
 3. To wash with, or in, a stream of water running through a sluice; as, to sluice eart or gold dust in mining.
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 sluice
      n : conduit that carries a rapid flow of water controlled by a
          sluicegate [syn: sluiceway, penstock]
      v 1: pour as if from a sluice; "An aggressive tide sluiced across
           the barrier reef" [syn: sluice down]
      2: irrigate with water from a sluice; "sluice the earth" [syn:
         flush]
      3: transport in or send down a sluice; "sluice logs"
      4: draw through a sluice; "sluice water"