The regulation on retailers exercising their buyer power should follow the rule-of-reason according to the relative preponderant economic position in the antitrust law and.

Whether the antimonopoly law regulates the comparatively dominant position depends on whether the position would restrict competition.

Based on summary of the cluster s concept, formative mechanism and economic advantage, the author has studied on its economic advantage.

Resource competitiveness refers to the capacity to transform resource advantage into economic advantage.

This article makes an introduction on the performance of the auger-drilling machine and the construction workmanship of hole forming, and gives an analysis of the technical and economic advantages in the aspect of equipment performance and hole forming workmanship of drilling technology.