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1)  high porosity
高孔隙率
1.
Preparation of porous Al with high porosity by infiltration method;
渗流法制备高孔隙率多孔铝
2.
The porous ceramic filtration materials with high porosity were fabricated by using floating beads as the aggregate and millet/polystyrene pellet and carbon powder as the pore-forming agent.
43 %的高孔隙率多孔陶瓷滤料。
2)  large porous sandstone
高孔隙率砂岩
3)  high porosity Al foam
高孔隙率泡沫铝
1.
The high porosity Al foam used as light energy absorber can reduce the overload over 30g at one time,and obtain longer delay time of plastic deformation to absorb impact energy of recovery mass smoothly.
采用精确控制的多种高孔隙率泡沫铝作为轻质能量吸收器,解决航空航天器返回地面及空降、空投着陆瞬间人员和装备的冲击过载问题。
4)  high porosity foamed Al alloy
高孔隙率泡沫铝合金
5)  porosity [英][pɔ:'rɔsəti]  [美][pɔ'rɑsətɪ]
孔隙率
1.
Porosity test in carbon composites based on a new ultrasonic attenuation method;
碳纤维复合材料孔隙率超声衰减测试研究
2.
Quantitative measurement of ceramic uranium dioxide porosity and pore distribution;
陶瓷UO_2孔隙率与孔隙分布的定量测量
3.
An experimental study on the porosity measurement of medium and high consistency pulp;
中高浓纸浆孔隙率测定的研究
6)  void content
孔隙率
1.
A new method based on pulse echo method was proposed for nondestructive testing of void content of carbon fibre reinforced composite material.
用超声反射法对碳纤维复合材料试块进行孔隙含量检测,探讨基于超声反射波频谱分析理论建模与实验标定的碳纤维复合材料孔隙率测试方法。
2.
Aiming at the test of void content of carbon-fiber reinforced composite used in aeronautic industry, developed a portable ultrasonic non-destructive test system.
针对航空工业碳纤维复合材料板材的孔隙率检测,研制了便携式超声无损检测系统。
3.
The attenuation coefficient shows approximately linear behaviour with frequency over the frequency range used,and the attenuation slope increases with the void content.
结果表明:超声衰减系数与频率之间存在线性关系,而且其斜率随孔隙率的增大而增大。
补充资料:镀层孔隙率
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CAS号:

性质:单位电镀层表面上存在的孔隙数。即从镀层表面直至基体金属的大小孔道数。它是衡量镀层品质的重要指标。测定镀层孔隙率常用的方法有贴滤纸法、浇浸法和涂膏法等。这些方法的原理大致相同。如贴滤纸法,是在镀层表面上贴置浸有一定检测试液的滤纸。若镀层存在孔隙或裂缝,则检测试液通过孔隙或裂缝与基体金属或底层金属镀层产生化学反应,生成与镀层有明显色差的化合物并渗透到滤纸上,使之呈现出有色斑点,根据有色斑点数确定孔隙率。

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