The utility model relates to a pair of multifunctional trousers, which is composed of zips, an alarm, a waistband, a layer of cloth, a cotton layer and a plastic layer.

本实用新型涉及多功能裤子，它是由拉链、警报器、腰带、布层、棉层、塑料层构成。

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In the early 19th century the Scotsman Charles Macintosh developed a process for making waterproof fabric by putting a layer of rubber between two layers of cloth.

FORBES: Pioneers Die Broke