| 摘要 |
<p>A water discharge device (WA) generates a large air bubble (BA)having a cross sectional area larger than a channel sectional area of a jetting port (10b) when the inside of a water storage chamber (10) is viewed from the jetting port (10b). The water discharge device (WA) intermittently forms the large air bubble (BA) to change a flow speed of a jet flow (WSm).</p> |
