The seq-zip, vector-zip, and xml-zip functions are helpers that call zipper with predefined implementations for sequences, vectors, and XML trees.

seq - zip、vector - zip和xml - zip函数均为帮助函数，可使用预先定义的实现为序列、矢量和xml树调用zipper。

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Zip Fastner for Inner bag No 8 with green tape. Heavy duty plastic with two way, two side zipper.

内胆用8号拉头，绿色布条，使用加强型塑料双向双面拉链。

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