Taking jack-up with truss legs for example this paper states the method of checking for some important performance of jack-up under elevated condition,including leg structure strength,fixation system or jacking system bearing capacity,preload capacity,spud bearing capacity and resist overturning stability by FEA method.

In the first place, the authors presented some mathematical formulae to prove that the station state probabilities of such a model are of some certain characteristics, whose correctness was then confirmed by computer simulation.

In his poems, he put forward an idea of "two contrary states of the human soul", and perfectly demonstrated this idea and showed their contrasts in his Songs of Innocence and Songs of Experience.