Understanding of the manufacture of sulfuric acid in two ways, contact the Law and nitrification.
了解制造硫酸的两种方法, 接触法和硝化法.
互联网摘选
以百里酚兰为指示剂,用氢氧化钠标准滴定溶液测定植物油中游离脂肪酸.
网络文摘精选
Pools of sulfuric acid are indications that deep underground there are titanic stirrings.
但是在这里,一座山正在孕育著能量.
互联网摘选
