In order to investigate the influencing factors that tobacco -farmers cognize the specialized curing, the tobacco -farmers\' cognition of mutual specialized curing was investigated, and the Wulong demonstration garden of modern tobacco in Chongqing City was taken as investigated sample.

It was also pointed out that the construction system and extension mechanism of curing barn should be improved as soon as possible so as to establish theoretical foundation for the development of specialized curing.

To master the laws of changes of pigment and moisture in the cured tobacco leaves during bulk curing process and increase the quality of the cured tobacco leaves.

According to the general conditions of the examination and repair in the railway depot, and to the problem of the waste of life span of use of the rolling bearings of locamotives, the method of regenerative selection and assembly of the rolling bearings of locamotives, and the theroy of specialized and centralized repair is put forword in this paper.

Based on the practice of water supply enterprises in establishing automation control production system,the experience in the measuring instruments allocation was summarized,and the rationality of professional centralized management of the instruments was analyzed.