The increased mobility of capital and technology does not invalidate the theory of comparative advantage, as some commentators like to argue.
资本和技术更具流动性。然而这并没有像一些讲解员常说的那样使得比较优势理论无效。
Whether in theory or in practice, we should emphasize research on firm movements and mobility barriers, particularly in regards to our domestic firms.
无论是从理论还是现实的角度出发，都应该重视对企业流动及流动壁垒问题的研究，这对现阶段的我国企业有着十分重大的现实意义；
Effective Mobility power Flow Method is presented, which is a new theory and is applicable in research of the power transfer principle of complex connected systems with complicated excitation.
结合复功率流法的概念和有效导纳的研究思想，提出了适合于复杂激励复杂连接系统功率传递规律研究的新理论、新方法——有效导纳功率流法。
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