-
Ammonia has been one of the more difficult basic chemicals to synthesize.
氨曾是一个较难合成的基本化工原料。
youdao
-
Alcohol is the basic material of beverage, wine and chemicals etc.
酒精是饮料、酒类及化工产品的基本原料。
youdao
-
Alcohol is the basic material of beverage, wine and chemicals etc.
酒精是饮料、酒类及化工产品的基本原料。
youdao