This study clearly showed that mosaic variation was caused by chlorophyll deficiency mutation of shoot tip histogen layer-Ⅱ;tissue and organs originated from the layer-Ⅱ couldn’t synthetize chlorophyll,thus induced albino; the albino variation appeared yellow green mosaic because layer-Ⅱ was displaced by layer-Ⅲ partly.

With quenching and hot rolling pretreatment,25MnV steel's hardness and strength after zero time holding quenching in different original microstructures were researched by orthogonal regressive principle,and its microstructure was analyzed too.

By means of high temperature microscope,graphite precipitation from T10A steel specimens with 4 kinds of original structures has been dynamicly observed when heated and cooled in vacuum.

The results show that the original structure affects the microstructural evolution process in a great extent.

To observe the austenitic grain growth dynamically of T10A with different original structures during heating in vacuum.

At present it is universally considered that occurrence of self-organized criticality(SOC) relates to scale effect and organization principle.

It is also the basic organization principle of the Chinese Communist Party.

This article essentially analyses it at the organization principle and the explanations given by Marx,Engels and Lenin,and concludes that the cssence of the democratic centralism exists in the cenrtal unity of organization by the politically adequate democracy.

This article illutrates some rules that should be ovserved about the centralized supervision and control system for power supply and environment in aspects of the principle of organization, the system f.