孔率就是多空物质的孔在整个物体中占有的体积或重量的比值。多孔材料的孔率，又称孔隙率、孔隙度或气孔率，系指多孔体中孔隙所占体积与多孔体总体积之比率，一般以百分数来表示，也可采用小数。该指标既是多孔材料中最易测量、最易获得的基本参量，同时也是决定多孔材料导热性、导电性、光学行为、声学性能、拉压强度、蠕变率等物理、力学性能的关键因素。
n. porosity
misc. aperture ratio
...网络；孔率；循环寿命 [gap=738]rr; premature capacity loss; low temperature curing; cold water spray; firm net; porosity; cycling life ...
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气孔率 porosity ; open porosity
开孔率 aperture ratio ; [建] percent opening ; fractional hole area ; percentage of opening
孔率计 porosimeter
总气孔率 total porosity
显气孔率 [陶瓷] apparent porosity ; AP ; Porosity
细缩孔率 pinhole porosity
开口气孔率 [陶瓷] open porosity
丝网通孔率 percentage of screen porosity
闭口气孔率 [陶瓷] closed porosity ; closed porosity
The main pores show a connective or half-connective structure,and they are also connective to the tiny pores,with the overall porosity higher than 50%.
主孔呈通孔和半通孔结构,并且两类孔隙相互连通,总孔率高于50%。
参考来源 - 一种新型多孔泡沫钨的制备Experiments showed that weight loss was almost zero,apparent porosity was 0.89%,water absorption was 0.24%. This result was the lowest one of the current experiment,it was obvious that the method was highly feasible.
煮泡实验表明本体系固化体质量损失几乎为0,视孔率为0.89%,吸水率为0.24%,系目前实验中最低数值,可见该方法制备固化体拥有很高的可行性。
参考来源 - 模拟α·2,447,543篇论文数据，部分数据来源于NoteExpress
孔率越低，这种聚合度对强度的影响就越大。
The lower the porosity, the greater the influence of DSP on strength.
塔板数和塔盘开孔率偏低，使乙腈回收率低、处理能力小。
Moreover, fewer plate number and low perforation area lead to low acetonitrile recovery rate and treatment capacity.
将丝蛋白溶液涂在旋转卷筒上，可以对图案、管开孔率以及复合特性进行控制。
Winding the silk solution on a rotating mandrel provides control of tube properties like winding pattern, tube porosity and composite features.
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