the gradation of sound absorption property for absorbent products
Related Translations:
分级: grade; classify; classification; gradation; grading; sorting; sizing; fraction 短语和例子把棉花分级 grade the cotton; 他将学生们按能力分级。 he graded the students according to ability. 牛奶是分级出售的。 milk is sold
Example Sentences:
1.
The gradation of sound absorption property for absorbent products 建筑吸声产品的吸声性能分级
