porous mass

基本解釋

Porous solid mass is an important material base in the formation of debris flow.
松散固體物質(zhì)是泥石流形成的重要物質(zhì)基礎。
Peat is a porous, brown mass of organic matter in which twigs, roots, and other plant parts can still be recognized.
這是一種具孔隙的，褐色的有機物質(zhì)塊體，其中還可見到細枝、根以及其它一些植物部分。
A mathematic model based on heat and mass transfer in porous media was established for the simulation of paper drying in dryer section of paper machine.
根據(jù)多孔介質(zhì)干燥過程中的傳熱傳質(zhì)理論，結(jié)合紙機工作特點，建立了紙頁的干燥過程物理模型和數(shù)學模型。