n. porosity
misc. fraction void
可以改变 该中空纤维的疏松度，以增强气体与血液之间的交换。
The porosity of the fiber bundle may be varied to enhance gas exchange with the blood.
适量加入能提高粉末的疏松度及流平，改善喷粉时的吐粉、堵枪现象及提高死角上粉率；尤其适用于金属及珠光粉末体系。
Dry flow agent can improve the porosity and the leveling of the powder, improve powder spraying, especially suitable for metallic and pearl powder system.
疏松砂岩稠油油藏孔隙度大，胶结疏松，粘土矿物含量偏高。
Heavy oil reservoir of loose sand is of large porosity, loose cementation and higher clay content.
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