汉译英：

经济主战场

main economic battlefield

　　党的十八大以来，中国科技事业取得历史性成就，发生历史性变革。重大创新成果竞相涌现，一些前沿领域开始进入并跑、领跑阶段。

　　我国科技发展要坚持面向世界科技前沿、面向经济主战场、面向国家重大需求、面向人民生命健康，不断向科学技术广度和深度进军。

　　Since the 18th CPC National Congress, China has made historic achievements and transformations in science and technology. China has seen major innovations emerge in large numbers and the country is now leading or co-leading the world in some frontier areas.

　　The scientific and technological development must target the global science frontiers, serve the main economic battlefield, strive to fulfill the significant needs of the country and benefit people's lives and health. Efforts should be made to continue to advance the development of science and technology to a deeper and broader level.