Abstract : in order to eliminate the product defects such as deformation , corrugation and rupture , the authors put forward the principle of flow rate uniformity for the design of rubber and plastics profile extrusion dies . on the basis of this principle and through the rheologic analysis of some actual cases , the design procedure is demonstrated 文摘:为解决挤出制品的扭曲变形、起皱、破裂等问题，本文提出了橡塑异型材挤出口模设计的流率平衡原则，并据此原则通过对具体例子的流变学分析，提出了口模设计方法。
Photo 3 this experiment was repeated many times over with the same result . the researcher then exposed water samples to different types of music . classical music always reflected beautiful patterns , photo 4 whereas heavy metal or rock and roll created distorted , formless , smudged images , photo 5 as if these types of music had destroyed the delicate equilibrium of the molecules 江本博士又将水的样本放在不同类型的音乐背景之下，古典音乐总是让水分子呈现出漂亮的结晶型态照片4然而当放在重金属摇滚乐下的水，其水分子结晶就变成扭曲变形的污浊型态照片5 ，原本正常结晶所保持的微妙平衡状态似乎被这种音乐破坏了。
