不过在击退这次攻击后的数日之内,美军还是撤离了这些缺乏掩护的阵地。
They plan to use wool, which is good at repelling water and absorbing oil, to soak up oil spills.他们想用羊毛吸收泄露的石油,运用羊毛亲油斥水的特性。
To create nonsticky adhesive materials, geckos showed the way to van der Waals force, the sum total of attracting or repelling forces between molecules.为了创造出非粘性的黏合材料,壁虎展示了范德华力的方式,分子间吸合或排斥的全部总和。