| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an innovative water introduction pipe having an extremely high commodity value.SOLUTION: The water introduction pipe for introducing pressure-fed water W2 to a water tank 1 comprises: an annular part 5 at a tip end of a tubular body 4 having a base-end opening part 4b; and a tip-end opening part 4a of the tubular body part 4, the tip-end opening part 4a being opened at an annular inner periphery 5a of the annular part 5. When the pressure-fed water W2 is fed from the annular body 4, the pressure-fed water W2 becomes a rotating flow by flowing along the annular inner periphery 5a to be fed laterally to the annular part 5.</p> |
