This paper mainly illustractes the"sewing jump"trouble for the GC1 -3 sewing machine and introduces some methods for Killing sucha trouble.

This paper describes a new species: Asemonea trispila of the spider genus Asemonea from Hunan Province, China.

Soil hydro-physical properties under broadleaved Korean pine and dark coniferous forests on northern slope of Changbai Mountains;

Hydrological processes of a dark coniferous forested watershed in the upper reaches of Yangtze River.;

Hydrological effects of forest land in sub-alpine dark coniferous forests of the upper reaches of Yangtze River.;