3. Because of this design is a folding carton is critical to quality assurance. 因此设计是折叠式纸盒质量保证的至关重要的一环。
1. the process whereby a protein molecule assumes its intricate three-dimensional shape
2. a geological process that causes a bend in a stratum of rock
3. the act of folding adj.
1. capable of being folded up and stored