报载，河北省某市农民历时五年，耗资10多万元，于1994年研制成功节能潜水泵，并获国家专利。这种节能潜水泵比国家专业标准节电87．46％，节省原材料50％，比工业发达的日本的同类产品标准还节电45％。这项发明的经济价值是显而易见的，故许多客商看到报道后纷纷要求订货。按 According to the newspaper, peasants in a certain city of Hebei Province lasted for five years, costing more than 100,000 yuan and successfully developed the energy-saving submersible pump in 1994 and obtained the national patent. This energy-saving submersible pump energy-saving than the national standard 87.46% professional, saving 50% of raw materials, industrial developed Japan than similar products standard also save 45%. The economic value of this invention is obvious, so many merchants have reported orders have ordered. press