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来自维基百科，自由的百科全书
蹦床[1]是一种由一块绷紧、坚固的纺织品製成的東西，纺织品放在钢架之间，即纺织品四周被钢架包圍，蹦床上裝有許多弹簧。很多人會在蹦床上蹦蹦跳跳。蹦床中的纺织品本身不具有弹性，其弹性由弹簧提供，而弹簧本身可以储存势能。
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Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
