preform的过去式是什么?preform的用法和例句

preform有预先形成;等意思，那么你知道preform的过去式是什么吗?今天一起来学习一下preform的过去式以及preform的用法和例句，希望对大家的学习有所帮助!

preform的过去式及其它时态

preform的过去式:preformed

preform过去分词:preformed

preform现在分词:preforming

preform第三人称单数:preforms

preform的用法和例句

1、In the injection stretch blow moulding process, injection moulding machine is used to make the preform.

注拉吹工艺先用注塑机注出瓶坯.

2、Condensate will leave marks on the preform surface.

露水会遗留痕迹在瓶坯的表面上.

3、A preform shape can be gained with backward simulation from the final bladeshape based on FEM.

为此,本文介绍了有限元反向模拟的基本步骤,综述了确定反向模拟中边界节点脱模准则的方法.

4、Precise preform loading system in order to minimize failure rate.

高可靠性的进坯、上坯、出坯系统、使吹瓶机故障率降到最低.

5、AZ 91 magnesium preform with complete shape prepared using spray forming technology under protective atmosphere.

在保护气氛中采用喷射成形制备技术制备了形状完整的AZ91镁合金沉积圆柱坯.

6、Most preform moulds are rectangular and are longer than they are wide.

大多数的瓶坯模具呈长形,就是长度比阔度大.

7、Two Methods: Used to liquid impregnate carbon fiber preform are introduced.

介绍了液相浸渍炭纤维坯体的两种方法.

8、An algorithm of three - dimensional braided composite material preform image processing 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.

9、An 8 - cavity preform mould costs more than the injection moulding machine that holds it.

八腔以上的模具价钱比注塑机还要高.

10、Major in PET preform mould, cap mould and blow mould.

专业生产瓶坯模具, 瓶盖模具和吹瓶模具.