Continuous air circulation is required in confined areas in order to obtain sufficient drying conditions.
Continuous air circulation is required in confined areas in order to obtain sufficient drying conditions.
为了获得足够的干燥条件，须保持良好通风。
Continuous air circulation is required in confined areas in order to obtain sufficient drying conditions.
为了获得足够的干燥条件，须保持良好通风。