2.国家科技创新体系
3.企业的自我约束机制
4.无氟冰箱
5.自由浮动汇率
翻译：
1.国际收支平衡balance of international payments/ balance of payment
2.国家科技创新体系State Scientific and Technological Innovation System
3.企业的自我约束机制self-regulating mechanism of enterprises
4.无氟冰箱freon-free refrigerator
5.自由浮动汇率free floating exchange rate; variable exchange rate
