A chemicaldust reducing method for the polyacrylamide powder is recommended.
介绍了一种聚丙烯酰胺粉末降尘技术。
2
Electrostatic dust, strong oil and chemicaldust adsorption ability, long time to form a layer of solid transport membrane.
静电对尘埃、油污和化学粉尘吸附才能很强，时刻长了构成一层坚固的交通膜。
3
The 'gold' pits isn't likely to be ferried back to Earth, though - scientists remain unsure of the chemical composition of the yelllow, shimmering dust that lines the pit walls every 'summer'.