| 摘要 |
A sprinkler is designed to be stacked upon a like sprinkler. The sprinkler includes a spray tube, a sled, a projection extending from either a top or bottom surface of the sled, and a recess formed at the top or bottom surface of the sled. The recess accommodates the projection extending from the sled of the like sprinkler so that the sprinkler can be stacked with the like sprinkler.
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