Factors influencing householders’ transferring out the cultivated land are analyzed from the aspects of farmers’ individual characteristics,farmers’ family f
Britain’s Oldest Road A friend and I recently cycled the Ridgeway,which follows a ridge of chalk hills from the small town of Streatley on the River Thames to
Bubble defect is one of the main defects of an automobile sheet.To solve this defect,the technology for nitrogen-argon mixed gas blowing on the tundish stopper