Equation between inter - yarn air permeability and parameters of fabric structure was deduced based on Hagen - Poiseuille hydromechanics.利用哈根伯肃叶定律,推导出机织物的纱线间孔隙透气量与织物结构参数的关系式.Equation between inter - yam air permeability ...
A fine - grained, light - colored granitic rock consisting primarily of orthoclase and quartz.一种由铁锰钨酸盐组成的矿物, 晶体状,主要的钨矿石,见于与花岗岩伴生的石英脉中.A batholith has been defined as a huge intrusive mass of granitic rock.岩基的定义是巨大的花岗石侵入岩...