| 摘要 |
An irrigation unit (10) includes a housing (200), a nozzle (220), a first mover (238) and a second mover (268). The nozzle (220) is secured to the housing (200) and is in fluid communication with a fluid source (18). The first mover (238) rotates the nozzle (220) about a first axis, and the second mover (268) rotates the nozzle (220) about a second axis that is different than the first axis. In one embodiment, the second axis is substantially perpendicular to the first axis. At least a portion of the housing (200) can movably extend along the first axis. The second mover (268) can rotate the nozzle (220) about the second axis based upon a pressure of a fluid (19) within the housing (200) and/or upon position of an area (30) relative to the nozzle (220). Further, the second mover (268) can oscillate the nozzle (220) about the second axis. The rotation of the nozzle (220) about the second axis can also be based upon at least one of a wind direction and a wind speed near the nozzle (220).
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