The water tunnel and wind tunnel test on arrow aims to make clear the hydrodynam ics performance of arrows and to improve the technical know-how of archery movem ent.

This is a comparative study of ethnic Naxi and Han people in arrow culture through a comparison of symbolic marks and scripts in the light of rituals of reproduction,life,heresy and withch doctor,blood-relationship and religion.

Over the past decades,studies on bamboo ecology focus mainly on the structure,dynamics,productivity and regeneration of bamboo communities and its ecological functions in hydraulic and soil aspects.