Verb:

1. form into a shape resembling the final, desired one

2. form or shape beforehand or determine the shape of beforehand

preemn.初次上演PREabbr.Petroleum Refining Engineer炼油工程师preconditoning预处理preformed foam预制泡沫prednisolamate泼尼索酯pre-reaction预反应pre-movement预滑precast lintel预制过梁pre-ordering预排序prehnitic acid[化] 连苯四酸; 1,2, 3,4-苯四甲酸precompressionn.预加压力(预先压缩)pre-packagedadj.预包装的

1. 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。
2. 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。