典型的凸条织物有:府绸 、 菲尔绸 、 罗缎和粗横棱纹织物.Examples of this construction include poplin, faille, bengaline and ottoman.我们校服的料子是罗缎, 所以穿起来很舒服.Our school uniform is made of silk, so it feels comfortable to wear....
In the reaction of acetylation and nitration 1,2 ? dichloroethane was used as solvent.在乙酰化、硝化反应中引入了1,2-二氯乙烷溶剂.Polyurethane demulsifier for crude oil were prepared from polypropylene glycol, xylene, toluenediiso - cyanate...