| 摘要 |
<p>Formation of an end drop on the spout is prevented and the precision of pouring is improved by treating the upstream or downstream surfaces so that the drop undergoes a surface attraction greator than that exerted by the downstream part. Pref. the upstream part is made hydrophilic by a network of small cracks. The down stream part is coated with Teflon (RTM), silicone, or their resin.</p> |
