即，他实际上需要吃60个鸡蛋，才能吐出100米的牵引丝。
利用原子力显微镜研究了蚕丝丝素、蜘蛛牵引丝及其内外层包卵丝的微观结构。
The microstructures of Bombyx mori fibroin and dragline, egg-case silk fibers of Araneus Ventricosus spider were studied by atomic force microscopy (AFM).
至少有三种蜘蛛能产生牵引丝；假如把这些丝结得更粗，它们就会像用于高性能飞机上的尼龙和碳纤维那样牢固。
At least three spiders produce dragline silk that, if spun into thicker strands, could be as strong as the nylon and carbon fibers used in high-performance aircraft.
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