衣片外型数学模型的建立；
The establishing of mathematic model for dress sheet profile;
丢失了拷贝纸样、衣片，还可以从样板原图上重新复描。
Copies of lost pattern pieces can be retraced from the original draft.
叠门；搭接：顾名思义搭接就是将一片衣片缉缝到另一片衣片上去。
Lapping: As the name suggests one section is lapped over a second section.
叠门；搭接：顾名思义搭接就是将一片衣片缉缝到另一片衣片上去。
Lapping: As the name suggests one section is lapped over a second section.
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