STEM与日常科技·英语精读30篇（5）
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Surface Tension and Aquatic Locomotion: How Water Striders Exploit Nanoscale Hydrophobicity
表面张力与水生运动：水黾如何利用纳米级疏水性实现水上行走
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Water striders distribute their weight across four elongated mid-legs coated with microscopic hydrophobic wax crystals that repel water at the air–liquid interface.水黾将体重分散在四条细长的中足上，这些中足表面覆盖着微小的疏水蜡质晶体，在气液界面处排斥水分。
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Their leg contact area is engineered to maximize surface tension force while minimizing localized pressure that would rupture the meniscus.其腿部接触面积经过优化设计，以最大化表面张力作用力，同时最小化可能破坏弯月面的局部压强。
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High-speed videography shows each stride generates capillary waves—not splashes—confirming energy transfer occurs entirely within the liquid's elastic boundary layer.高速摄像显示，每次蹬腿仅产生毛细波而非飞溅，证实能量传递完全发生在液体的弹性边界层内。
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Bioinspired robotics labs replicate this using laser-etched aluminum legs functionalized with fluorinated polymers mimicking cuticular nanostructures.仿生机器人实验室采用激光蚀刻铝制腿并涂覆氟化聚合物，模拟昆虫表皮纳米结构来复现这一机制。
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Urban stormwater engineers apply these principles to design permeable pavements that delay runoff by sustaining thin water films via controlled surface energy gradients.城市雨水管理工程师应用这些原理设计透水铺装，通过可控表面能梯度维持薄水膜，延缓径流产生。
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Understanding this mechanism helps city planners select materials that reduce flood risk without relying solely on underground drainage infrastructure.理解该机制有助于城市规划者选择可降低洪涝风险的材料，而不必过度依赖地下排水设施。