Tianjin Steel Trading Company Wansheng said Q345D angle calculation formula is really just produce a variety of contradictions "Great Moderation" prosperity under the cover accumulated, deepen and spread and processes outbreak. With the end of the old normal large stable as the main feature, 1997 in Asia, in Russia in 1998, and then entered a long-term structural adjustment as the main content of the new normal, the global economy experienced a few "good old days." Sustained high economic growth, low inflation and low unemployment coexist quality efficiency, no exceptions. Fluctuations in the economic cycle characteristics significantly weakened, though the intensity has repeatedly erupted ranging financial crisis (in the 1980s in Latin America restructuring, Global has experienced an international economic circles called "Great Moderation" old normal stage It was a rare period of prosperity unforgettable people since the mid-1980s to the present century, before the global financial crisis more than 20 years between Q345D angle, and also the United States occurred in the late 1990s, the real estate market Akebono's tumble and the new century IT bubble burst Q345D angle, during that period, but overall, 2001 in the US) the rapid growth of the global economy is the basic trend of large stable period. "Great Moderation" is a comprehensive product range of in-depth development of the global scientific and technological progress, the institutional mechanisms of change and globalization. Wansheng Tianjin Steel Trading Company was informed in 2007 that the "big stable" to the Great Depression of the joints. From the "Great Moderation" is converted to a major crisis, the global economy into a deep adjustment and rebalancing of the "new normal." World and China, before the new normal, while above news for reference only. All journal authors, if violated your rights, please contact us as soon as possible, modify, delete.