poriferous

Leather is by ossein type piece the material of poriferous fiber shape that poriferous matrix makes record.

皮革是骨胶原片状多孔基质构成多孔纤维状质。

Profile is poriferous cavity, advocate the liner steel that there is Lengza armor plate to be made inside antrum, in order to increases the strength of window of model steel door.

材为多孔空腔，主腔内有冷扎钢板制成内衬钢，用以提高塑钢门窗强度。