Standard rubber bands, which can stretch up to several hundred percent then snap back into shape, are made from long chains of cross-linked polymers.
标准橡皮筋由交错连接的长链聚合物制成，能拉伸至原先长度的几倍，释放后可缩回原型。
Simple Art - Take a pegboard and stretch different color rubber bands in various shapes until every peg has been used at least once.
简单的艺术-用一个小钉板，画出不同形状不同颜色的橡皮筋，直到所有挂钉都至少被用过一次。
Standard rubber bands, which can stretch up to several hundred percent then snap back into shape, are made from long chains of cross - linked polymers.
标准橡皮筋由交错连接的长链聚合物制成， 能拉伸至原先长度的几倍，释放后可缩回原型。
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