如题所述
闭口拉链:(closed-end Zipper):从拉头的顶端到下止的末端。开口拉链:(Open-end Zipper)从拉头的顶端到下止的末端。逆开拉链:(Movable open end Zipper)从拉头的顶端到下止的末端。双拉头两头相对:zipper with double sliders(arranged inhead-to-head relation)两下止末端之间的长度。双拉头两头相背:zipper with double sliders(arranged in bottom-to-bottom relation两两拉头顶端之间的长度。
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