To view this page ensure that Adobe Flash Player version 10.2.0 or greater is installed.
Either scripts and active content are not permitted to run or Adobe Flash Player version 10.2.0 or greater is not installed.
姓名: 单位: 联系方式:
蜘蛛是如何吐丝的?它织出的丝为什么那么坚韧?科学家们希望从蜘蛛吐丝中获得灵感,利用一种特殊的蛋白质生产出与蜘蛛丝一样坚韧的人造丝。