短语词组短语air cleanliness 空气洁净度surface cleanliness 表面洁净度;表面清洁度inclusion cleanliness 夹杂物清结度fuel cleanliness 燃油清洁度Baseline cleanliness 基准清洁CleanlinESS S 清洁度Cleanliness detection 洁净度检测visible cleanliness [化学]可见纯净度 返回 cleanliness