air curtains的用法和樣例：
例句
- The mine air curtain is a kind of good wind control technology.
礦用空氣幕是一種較好的風(fēng)流控制技術(shù)。 - An air curtain was designed according to the jet theory of fluid mechanics and the role and feature of air curtain to separate dust in a fully mechanized face.
根據流體力學(xué)射流理論，分析了空氣幕在綜采工作面隔離粉塵的作用，并根據綜采工作面應用空氣幕隔塵的特點(diǎn)，設計了空氣幕。
