音标:[pri:'fɒ:m] ;
vt. 预先形成
n. 预成型品
v. form into a shape resembling the final, desired one
v. form or shape beforehand or determine the shape of beforehand
词型变化:过去分词 : preformed ; 现在分词 : preforming ; 名词复数形式 : preforms ; 过去式 : preformed ; 第三人称单数 : preforms
词性分布:
动词100%

preform的用法和样例:

例句

用作及物动词(vt.)
  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。

词汇搭配

  • laminated preform叠层预成型物...
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