It is found that the growth mechanism of the iron films is similar to that of nonmagnetic films on liquid substrates,in accordance with a two-stage growth model.

A nearly free sustained aluminum film system has been successfully fabricated on liquid substrates by thermal evaporation method.

It was found that the growth mechanism of the films obeys a two-stage growth model, similar to that of other non-magnetic film systems on liquid substrates.

Besed on the quality problem that has arisen frequently on inside surface of ground floor wall,the paper analysis its basic reason of ground floor wall on the heat conduction and conduction dempness as well as building thermal characteristics.

Upward mobility for the bottom class in China;

Effects of double bottom tank and contained oil on the vibration transfer characteristic of main engine;