Distribution channel is the important part of marketing, which has the nature of slow-establish process, long-term efficiency and unsureness of control.
Conclusion The hypothermia,extracorporeal circulation,clamp of aorta and drugs,etc.can lead to decrease of HRV in cardiac surgery.The resume of autonomic cardioneural system was a slow process.
The historical development of a language is hardly a sudden transformation of one language into another, but a gradual and constant process, often indiscernible to speakers of the same generation.
Global capital markets are heading for an era of much slower growth as the financial crisis and recession have changed the dynamics of the world economy and investable universe.
The microstructure deformation in the aging process of the alloy has been stated ,and the heteromorphy has been found the cause of the natural aging process of the 2011 alloy .