cellulose is the most abundant organic raw material in the world, and it is the only renewable resource that is available in large quantities.
纤维素是自然界中存在最广泛的一类碳水化合物,同时它也是地球上数量最大的再生资源。
cellulose is the most abundant organic raw material on the earth, and it is the most renewable resource that is available in large quantities.
纤维素是自然界中存在最广泛的一类有机化合物,也是地球上储量最大的可再生资源。
styrene is an important organic raw material for chemical industry. normally it is made by dehydrogenization of ethyl benzene at adiabatic and vacuum conditions.
苯乙烯是重要的有机化工原料,通常采用负压绝热脱氢法,然后再精馏分离获得高纯度的苯乙烯产品。