众所周知,马铃薯除含9%～25%的淀粉外,还含有较丰富的维生素,其中维生素C含量与同等量的苹果中维生素C相当.除此之外,马铃薯中还有人......

根据南阳石蜡精细化工厂石油蜡生产现状和地板基材蜡质量指标要求，选用石蜡和中间原料为主要原料。通过实验确定采用添加剂B，地板基......

A field study was conducted to determine the behavior and distribution of arsenic during the pyrometallurgy process in a......