Interchangeable virtual instrument,affords standard software socket for general instruments,so let developer have more energy to empolder test code,it is a new revolutionary criterion of instrument drivers,it includes class driver and specific driver.

Using gas reservoir engineering theory,gas well production performance,dynamic analysis method of gas reservoir,this paper has studied the basic development characteristics of Baiyinnuole gas field,defining gas reservoir drive type,gas field dynamic reserves,rational gas production rate as well as gas well production decline rule.

According to the Canonical correlation analysis between the LUCC of the arid region and relative social economy and its changed characters,the indexes that express dynamic changes of land use with unit ofcountryand their human driving mechanisms were brought forward,and the correlationsbetween them were analyzed.