dust mulch的用法和樣例：
例句
- The wind smothered the houses with dust.
大風(fēng)刮起的塵土覆蓋了房子。 - 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。
