火车头的作用就是带动作用，主力军的作用就是骨干作用。我们要进入两个市场，参与国内外市场的竞争，必须发挥重点骨干企业的支撑和带动作用。不管是哪一个地方，都必须有一批骨干企业，所以，中央领导同志曾三番五次地提出来，要在全国打造具有相当竞争力、可以跟世界５００ The role of the locomotive is to promote the role of the main force is the backbone. We want to enter the two markets and participate in the competition in domestic and overseas markets. We must give play to the support and leading role of key key enterprises. No matter where it is, there must be a number of key enterprises. Therefore, the central leading comrades have repeatedly proposed to build a nationwide market that is quite competitive and able to compete with the world's 500