1)elasticized cuff,松紧袖口2)density,松紧3)tightness,松紧程度4)elastic rules,松紧规律5)the effct of degree of tightness,松紧效应6)loosen preparation procedure,松紧过程
用法例句
In this paper the reasons why there are density differences among coated paper in some carbonless copy paper productions were discussed by professional analysis.