| 摘要 |
<p>A liquid flow duct forming mobile apparatus particularly for irrigation comprises a plurality of telescopically coupled pipes, the largest diameter pipe thereof is fixed to a wheeled frame and provided at one end with a pressurized liquid supply line fitting. The smallest diameter pipe carries at one end an irrigator and each pipe of the series may be run out to an appropriate extent under the influence of the pressure applied by the liquid being pumped.</p> |
