膜保护酶系统
membrane protective enzymes
膜脂保护酶活性
protective enzyme activity of membrane lipids
保护酶酶活性
activity of cell defense enzymes
保护膜制备
Preparation of protecting layer
表面氧化保护膜
Surface oxidation protective films
薄膜保护层
thinfilm protective coating
地膜保护
protection by plastic mulching film
钝化保护膜
passivation protection film
高聚物保护膜
macromolecular protective film