He Z, Jin J, Zhang Q, Chen Z, Yang M. Research on Chemical Process of Ethanol Coupling to Prepare C4 Olefins Based on DEA Model. L-E [Internet]. 2021Dec.8 [cited 2024Dec.22];10(4):25-7. Available from: https://ojs.piscomed.com/index.php/L-E/article/view/2512