This paper assesses the mode option of deepwater rigs through analyzing different kinds of rigs\' offline operation ability and offline configuration,working efficiency,variable deck load(VDL) and patent influence.

So on the basis of analyzing the present researches on Offline Work both at home and abroad, this paper mainly studies the application of Offline Work to Smart Client, which combines the advantages of rich client application as well as the deployment and administrable of thin client application.

This paper briefly describes the technological process, main charateristics and production examination of precast operating line for dual-function anticorrosion of pipeline developed by East Sichuan Development Corporation, which can be popilarized and gives a reference to the pipeline construction interprises.

By comparison with economic input and output,it is vital to form a mechanized operating line equipped with supporting construction machinery in coal and ore mining construction to achieve the reasonable,economic and safe construction goal.

On the actinobacillus operation of the electrified contacting nets constant tension train unit;