| 摘要 |
PROBLEM TO BE SOLVED: To provide a water-supplying device by which water is automatically supplied to a paddy field and the water-supply is automatically stopped. SOLUTION: The automatically water-supplying device is constituted as follows. A ball tap is installed in the paddy field, and an opening and closing part is installed between an irrigation canal and the paddy field. A water container is used for the opening and closing part, and the opening and closing part is operated by the action of the ball tap. COPYRIGHT: (C)2009,JPO&INPIT
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