The seasonally frozen ground can be divided into intergradation, semi-intergradation, long-term stability and stability.
可把季节冻土分为过渡型、半过渡型、长期稳定型和稳定型等类型。
2
We create Predictive Model by analyzing system of Semi-Active control. We design the controller of Semi-Active control system, research stability of system with Internal Model control (IMC) theory.
This bluish green colour stain shows good stability and is especially suitable for transparent and semi-transparent sanitary glazes with a low zinc content.