dry sprinkler

名词 n.

英文释义

名词 n.
  1. A sprinkler (fire protection device) having pressurized air in the distribution pipes until a heat-activated sprinkler head opens and releases the stored air pressure, which opens the water valve.
    — A dry sprinkler may be used where there is a risk of water freezing solid within the pipes.

词形变化

dry sprinklers plural
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