1)  air permeability tester,densometer
透气度测定仪
2)  densometyer
纸张透气度测定仪
3)  permeability
透气
1.
Study on the relationships between the structures,permeability and the pores of worsted fabrics;
精纺毛织物的孔隙与结构及透气性的关系
4)  air permeability
透气
1.
A new test method for air permeability of fiber assembly;
一种研究纤维集合体透气性能的新方法
2.
Analysis of air permeability and moisture transmission properties of flax/jute lawn cultivation base;
黄麻/苎麻草坪培植基的透气透湿性分析
5)  breathable
透气
1.
This review summarizes the structure, principal and several manufacture theories of waterproof and breathable polyurethane film, coating, and their applications.
综述了防水透气性聚氨酯薄膜及涂层的结构、原理及各种成型加工工艺及其应用。
2.
Covered fabric is less breathable for the covering film is composed with macromolecule material, which prevents the air from premeating between the two sides of the fabric.
涂层织物在涂饰中所用的高分子材料薄膜的透气性较差,阻碍了空气的透过作用,导致涂层织物的透气性降低。
6)  ventilation
透气
1.
The later the time of collection of the seeds,the weaker the ability of the ventilation of seed shell;the stronger the inhibition of seed shell on t.
结果表明,山楂种壳透气性差,能显著地抑制种子的呼吸。
参考词条
补充资料:鲜映度测定仪
分子式:
CAS号:

性质:平整光洁的涂膜能像镜面一样反映出物体的影像(或投影),其反映影像的清晰程度,称为鲜映度,以DOI值表示。测定涂膜鲜映度的仪器,称为鲜映度测定仪。它由一系列标准的鲜映性数码板组成。数码板分为0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0,1.2,1.5 ,2.0共13个等级,称为DOI值。每个DOI值旁印有几个数字,随着DOI值的升高,印的数字越来越小,用肉眼越不容易辨认。观察被测涂膜表面并读取可清晰地看到的DOI值旁的数字,即为相应的鲜映性。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。