1·Objective:Improving the earning ratio on sodium salt azeotropism crystallization in the process of refining Penicillin is vital important to the total rates of return in producing Penicillin.
前言： 目的：提高青霉素提炼过程中钠盐共沸结晶的收率，对于青霉素生产过程的总收率的提高非常重要。