| 摘要 |
A spray tube assembly including a spray tube mounted on the base of an oscillating sprinkler and oscillated by an oscillating control device, and an inner tube inserted into the spray tube and having two symmetrical sets of sector water stoppers mounted around the periphery, the sector water stoppers having respective peripheries extended to different angles, wherein turning the inner tube within the spray tube causes the sector water stoppers to alternatively stop or open the jet nozzles on the spray tubes.
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