Joining together must clean up, to ensure flat-fell seam lap closely.
拼接处必需清理干净，以确保拼缝搭接紧密。
When joining two layers of fabric together, the seam is secured by tacking at the start and the finish.
两层面料缝合在一起时，需在衣缝开始和终端处用加固缝使其牢固。
The seam may be an integral part of the original design of simply serve the purpose of joining sections to achieve the bare 'shell' of the garment.
缝线是原始设计整体所需的部分，仅仅为了达到缝合裁片的目的，使衣服能获得一个无装饰的框架。
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