摘要 抚顺市农业科学研究院果树研究所一直承担着辽宁东部山区野生资源(果树)开发利用研究.2005年在果树资源调查时发现新宾县上夹河镇胜利村南山果园有一株野生山梨,品质十分优良,多年来鲜果销售一直看好. 关键词 新品种;山梨;辽东;优质梨;平均单果重;品质优良;新宾...
Quality –we have only one standard: 100% customer satisfaction TQC (total quality control) means that our mangement pays great attention to quality control in the whole manufacturing process: from R&D stage, material purchasing, production, inspection to deivery and after sale service. The whole ...
10cm 综上可知, 1 u + 1 v = 1 f 是正确的; (2)由表格中数据分析知,第一组物像之距为72cm,第二组距离为40cm,第三组距离为45cm,可将物像之距在u=2f=20cm时最小; (3)根据(1)的结论: 1 u + 1 v = 1 f 则 1 u + 1 45cm ...