preform

vt.

预先形成；

n.

粗加工的成品；

过去式：preformed过去分词：preformed现在分词：preforming第三人称单数：preforms

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。

The Osprey Preform Process
Cover with gapped adhesive preform
Computer-aided preform design in forging of an airfoil section blade ☆
Titanium powder production by preform reduction process (PRP)
Continuous-fiber preform reinforcement of dental resin composite restorations.
A new approach to preform design in metal forming with the finite element method ☆
Carbon composites based on multiaxial multiply stitched preforms. Part 1. Geometry of the preform
As-spray-deposited structure of an Al-20Si-5Fe Osprey preform and its development during subsequent processing
Application of artificial neural network and Taguchi method to preform design in metal forming considering workability
248 nm induced vacuum UV spectral changes in optical fibre preform cores: support for a colour centre model of photosensitivity