n.预成型,压片;
v.预先形成( preform的现在分词 );
例句:
1、
Extensive preforming is a requisite with various production methods employed for this purpose.
出于这一目的,预先大规模地准备好各种生产方式是必要的.
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2、
The utility model relates preforming machine which relates to the field of polyfoam machines.
一种批次式预发机,涉及泡沫塑料机械领域.
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3、
The article has introduced the cross wedge rolling preforming technology and its die design.
介绍了楔横轧制坯工艺及其模具设计.
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