An object made of a soft, pliable material, such as cotton or rubber, and fitted into the ear canal to block the entry of water or sound.

一种由柔软而灵便的材料制成的东西，如棉、橡胶等材料，以嵌入耳道挡住水或声音的进入。

youdao

Sound familiar? If you're one of these kinesthetic learners, get out a few things to anticipate an "ants in your pants" issue: a pen, a rubber band, and a ball.

听起来是不是很熟悉？如果你也是触觉型学习者，可以准备一些东西来应付你的坐立不安：钢笔、橡皮筋和球。

youdao

We applied the finite element method to study the variation of sound absorption structure and performance of rubber material under variable hydraulic pressure.

应用有限元方法计算静水压力变化下几种橡胶吸声结构的形变和吸声性能。

youdao