Gangue from underground separation of coal can directly be used for filling mined out areas, saving transport capacity a......

【目的】阐明叶喷水杨酸（SA）对山药地下块茎蔗糖-淀粉转化的影响，为了解山药蔗糖转化机制、提高其淀粉形成提供参考。【方法】设置SA ......

Underground urban expressways are a possibility for solving many existing transportation-related problems, such as traff......