一种填补国内空白的新型小麦、水稻联合收割机械——4L—2.5型谷物联合收割机,最近在山东省莱州市渤海机械厂研制成功。并通过省级技术鉴定。专家认为,该机的研制成功,不仅提高了粮食收获率和抢收速度,而且将对农村规模化经营及农业新技术推广起到了积极促进作用。 A new kind of wheat and rice combine harvester to fill the gaps in China - 4L-2.5 grain combine harvester, was recently successfully developed in Bohai Machinery Factory of Laizhou City, Shandong Province. And through the provincial technical appraisal. Experts believe that the successful development of this aircraft has not only increased the rate of food harvesting and the speed of harvesting, but also promoted the large-scale operation of rural areas and the promotion of new agricultural technologies.