for this, foreign some company is a foundation with the hydrokinetics, pass current analysis, studied the efflux feature of weak opening and poriferous oxygen gun.
为此,国外某公司以流体动力学为基础,通过液流分析,探究了单孔和多孔氧枪的射流特征。
the surface of the residue grain showed poriferous and lax structure.
大部分颗粒表面呈多孔、疏松结构。
sem analysis show that morphology of the residue was mostly anomalistic vitreous body that the surface was coarse, poriferous and of lax structure, and therefore it was different from fly ash.