preform

用法：

例句：

1. The plastic is preformed into the shape of a bottle.
2. The clay is preformed and then baked.
3. These sheets of metal are preformed to fit the shape of the car body.
4. The glass preform is heated and then blown into the final shape.
5. The preform of the statue was made from clay.
6. The company preforms plastic bottles before shaping them into their final form.
7. The preform of the sculpture was made from a mold.
8. The preform is heated and then blown to create the final glass product.
9. They preform the plastic material into various shapes.
10. The preformed metal sheets are ready for assembly.
11. Before casting, the preform is coated with a release agent.
12. The preform of the dress is tailored to fit the model perfectly.
13. He uses preform techniques to shape the clay before firing it.
14. Preform production involves shaping the material into a preliminary form.
15. The preform is then machined to achieve the desired final shape.
16. The preform stage of the manufacturing process is critical for quality control.
17. She preforms the dough into small balls before baking them.
18. They preform the glass tubes into specific shapes for scientific experiments.
19. The preform is carefully molded to ensure accuracy and precision.
20. Preformed concrete blocks are used in the construction of the building.
21. After preforming the metal, it is welded together to create the final structure.