| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to vary the flow of a material over time to generate an extruded structure that is nonlinear uniform stripes of extrudate structures.SOLUTION: A structure comprises at least one stripe of a material having a prescribed length, where a first stripe has a varying width along the length. The at least one stripe includes two stripes, where the first stripe width varies complementarily to a second stripe. The first stripe and the second stripe are made of the same material.</p> |
