Performance of Direct Air Cooled Condenser Under Natural Draft in Winter 冬季自然通风状态下直接空冷凝汽器的性能
Reviewing the attitudes of different countries to the technique, we can have some inspirations which will direct our country to draft the interrelated policies. 分析世界各国对克隆技术发展的反应,从中得出启示,将为我国相关政策的制定提供有益的指导。