preform中文含义是什麼

粗加工的动词形式用英文怎么说?名词可能是preform!越快越好,
二楼的大哥/大姐你说的是名词，不是动词？

英语翻译
the preform may be further shaped to bring it closer to the final configuration in a"blocker die",which ensures proper distribution of material within the die.excess material is allowed to run out between the dies into a flash.before forging in the finishing die the excess material may be removedin a trimming die.A thick flash in the finishing die means high pressure within the die,which assures proper die filling.excessive pressure may break dies or reduce their life,and some control on this may be exercised by proper control the flash land.
the geometry of the preform and the forging dies must promote smooth materialflow.therefore,a parting smooth material flow.therefore,a parting line is chosen with proper consider of the fiber structure of the located the die walls are given sufficient draft to permit removal of the forging from the die cavities.fillets and corners must be given appropriate radii to ensure smooth material flow and long die life.

模具英语中preform mould with hot runner with tail 的尤其是with tail在句中是什么意思