The concept of the prime movers is an evolution of the notion of `pivotal country' in South-South cooperation and was proposed in a High Level meeting of these countries in Hangzhou, China in late 2003.
牵引机的概念是南南合作中“枢轴国”这一概念的演进，是2003年下半年在中国杭州召开的枢轴国高级别会议上提出的。