pneumatic barrier的用法和樣例：
例句
- A floating barrier separates a clean water surface from a water surface containing the monolayer.
一塊浮動(dòng)隔板將清潔的水面與含單分子層的水表面隔開(kāi)。 - If a barrier separating the two sides is punctured, the air rushes to equalize its distribution in space.
如果戳穿中間的隔板，空氣就會(huì )沖來(lái)沖去，直到在空間均勻分布為止。
