1) porosity
[英][pɔ:'rɔsəti] [美][pɔ'rɑsətɪ]
孔率
1.
Calculation of electrical resistivity of nickel foam by means of porosity;
发泡镍电阻率的孔率计算法
2.
The active material porosity measuring method and the relation between paste density and porosity;
活性物质孔率的测定方法及孔率与铅膏密度的关系
3.
Influence of stent porosity on cerebral intra-aneurysmal hemodynamics:a three-dimensional numerical simulative study
支架孔率对脑动脉瘤血流动力学影响的三维数值模拟研究
2) microporosity
[,maikrəupɔ:'rɔsəti]
微孔[孔隙]率
3) porosity
[英][pɔ:'rɔsəti] [美][pɔ'rɑsətɪ]
气孔;孔隙率
4) 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
5) holes area ratio
开孔率
1.
The optimal holes area ratio of draft tube was 16.
研究发现导流筒的安装会降低功耗,提高气含率;导流筒的开孔率以16。
2.
the lower impeller which is used as upward axial impeller is better than the one used as downward axial impeller in the experiment; the gas hold-up of the reactor with two-stage draft tubes is the best, and the holes area ratio of upper draft tube should be 6.
研究芯现,下桨排出流向上的气含率比排出流向下时的高;反应器中双层导流筒结构时的气含率结果最优,上层导流筒的开孔率应为6。
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：布气临界开孔率
分子式：
CAS号：
性质：均匀分布流体的分布板的最小开孔率，也是区分高压降分布板和低压降分布板的标志。郭慕孙根据散式流态化的理论和高压降分布板的概念，导得分布板的临界开孔率式中，流量系数c=0.99[d0/t)-0.125；L为床高；g为重力加速度；u为表观线速；ρf为流体密度；△ρ为颗粒与流体的密度差；d0为分布板孔径；亡为分布板厚度，对于具有散式特征的某些细粒流化床；n=4.65；εmf=0.4。
CAS号：
性质：均匀分布流体的分布板的最小开孔率，也是区分高压降分布板和低压降分布板的标志。郭慕孙根据散式流态化的理论和高压降分布板的概念，导得分布板的临界开孔率式中，流量系数c=0.99[d0/t)-0.125；L为床高；g为重力加速度；u为表观线速；ρf为流体密度；△ρ为颗粒与流体的密度差；d0为分布板孔径；亡为分布板厚度，对于具有散式特征的某些细粒流化床；n=4.65；εmf=0.4。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条