预型 meaning in Chinese

preform

Other preform rod manufacturing equipment
预型体制造设备其他
Preform rod polishing mechanics
预型体研磨加工设备
Aerospace series - technical drawings - representation of parts made of composite materials - preforms
航空航天系列.技术制图.复合材料部件表示法.预型件
But its using has been limited because of the complex manufacture technology and high costing . so it will be good for expanding this composite using and have good social and commercial benefits , if wecan find out a simple technology to manufacture mosi2 / sic composite
直接浸渗法制备mosi _ 2 sic复合材料时，具有工艺简单，浸渗时保持预型件形状和尺寸基本不变的独到优点，这对于该材料的实用化具有十分重要的理论和实际意义。