| 摘要 |
Impact irrigator with a swinging nose and of the type provided with an inclined propelling tube (10) rotatable on a substantially vertical column (1), comprising means (8) for automatically braking the rotation of the rotatable tube in accordance with the pressure, means (31, 36) for adjusting the period of swing of the swinging nose, and double acting deflector means (31) for swinging said nose by interference with the water jet and for arresting its swing at each period before it collides against the propelling tube, again by interference with the water jet.
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