| 摘要 |
<p>A spout comprising a tubular housing (1) with a tapered wall portion (5) adjacent to an outlet port (4), a tapered valve (7) located opposite the tapered wall portion (5) and connected to a position control member (9), and a flow control member (10) arranged upstream from the valve (7) relative the flow direction of the material, and connected to a position control member (11) separate from the position control member of the valve.</p> |
