STEM与日常科技·英语30篇（1）

7 / 30

已读 0 / 30 课

超疏水涂层与荷叶效应

Lotus leaves repel water so effectively that droplets roll off, carrying dirt and microbes — a natural self-cleaning mechanism.
Scientists copied this by engineering micro- and nano-scale bumps on surfaces, then coating them with low-surface-energy wax-like materials.
These textures trap air pockets beneath water droplets, minimizing contact area and increasing contact angle above 150 degrees.
Applied to solar panels, such coatings prevent dust buildup and improve energy output by up to 12% in dry regions.
On aircraft wings, they reduce ice formation by limiting water adhesion during cold, humid flights.
Medical devices gain infection resistance, as bacteria struggle to attach and form biofilms on slippery, dry surfaces.
Unlike traditional waterproofing, superhydrophobic layers work without sealing pores — ideal for breathable fabrics and building facades.
Durability remains a challenge: abrasion or UV exposure can degrade nanostructures, prompting research into self-healing variants.

听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。

On aircraft wings, they reduce ice formation by limiting water adhesion during cold, humid flights. 用于飞机机翼时，可降低冷湿飞行中水的附着，从而抑制结冰。
Durability remains a challenge: abrasion or UV exposure can degrade nanostructures, prompting research into self-healing variants. 耐久性仍是挑战：摩擦或紫外线照射可能破坏纳米结构，促使研究人员开发自修复变体。
Lotus leaves repel water so effectively that droplets roll off, carrying dirt and microbes — a natural self-cleaning mechanism. 荷叶疏水效果极佳，水珠滚落时可带走灰尘和微生物——这是一种天然的自清洁机制。

这篇中文题目最接近哪一句？超疏水涂层与荷叶效应一次学校运动会的通知一份超市购物清单

课文第一句的意思更接近？荷叶疏水效果极佳，水珠滚落时可带走灰尘和微生物——这是一种天然的自清洁机制。今天学校放假了。请把窗户打开。

这一课主要在讲什么？（看英文标题） Superhydrophobic Coatings and the Lotus Effect How to cook noodles A maths worksheet

On aircraft wings, they reduce ice formation by limiting water adhesion during cold, humid flights.

On aircraft wings, they reduce ice formation by limiting water adhesion during cold, humid flights.

第一版：录下来、回听、再听标准音。系统打分以后再加。

用今天的表达，自己说一句。

例子：On aircraft wings, they reduce ice formation by limiting water adhesion during cold, humid flights.