单词：preforms
v form or shape beforehand or determine the shape of beforehand
preform的用法和样例：
例句
- The superior preform of composites is a basic requirement and one of key factors for fabricating superior properties composites.摘要高质量复合材料预制块是获得高性能复合材料的基本要求和关键要素之一。
- An algorithm of three-dimensional braided composite material preform image proce ssing based on mathematics morphology is presented.提出一种基于小尺度的数学形态学的三维编织复合材料预制件图像的边缘检测方法。
词汇搭配
- laminated preform叠层预成型物...
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