The preparation technology and its effect factors for polyvinyl formal foam plastic by way of mechanical foaming method were studied.
本文论述了用机械发泡法制备聚乙烯醇缩甲醛泡沫塑料的工艺及其影响因素。
When drinking it due to mechanical impact and the role of foam.
使其在饮用时由于机械冲力的作用而发泡。
In addition, the essential mechanical properties of metal foam are introduced briefly.
此外，简单介绍了泡沫金属的基本力学性质。
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