Climate-Soil Productivity and Agricultural Structure Adjusting in Several Typical Areas in Upper Reaches of Yangtze River--A Case of Sichuan and Fringe Areas of Yangtze River是什么意思_Climate-Soil Productivity and Agricultural Structure Adjusting in Several Typical Areas in Upper Reaches of Yangtze River--A Case of Sichuan and Fringe Areas of Yangtze River在线翻译_英语_读音_用法_例句