论文部分内容阅读
到本世纪末,我国北方缺水少林的现象,要得到根本的好转,需要打井配泵提取地下水,还需要从南方调水,建泵站输水;我国南方大型排涝和小型灌排也需要大量的排灌机械;在农业上田间用水量大,需要推广喷滴灌等新技术,也要高效节能的喷灌机具;我国还需要适当开发与各种能源配套的排灌机械。水是一个极关重要的问题,至本世纪末,我国年用水量将由现在的四千亿米~3提高到六千亿米~3,据统计地下水、地水表开发利用仅占可利用的12—20％,而现有排灌动力已占农机总动力约40％,所以随着国民经济用水量的增加,研制各种类型优质高效的排灌机械,将对国家的发展起着举足轻重的作用。
By the end of this century, the phenomenon of water-deficient Shaolin in the north of our country will have to be fundamentally improved. We need to work well with pumps to extract groundwater. We also need to transfer water from the south and build water for pumping stations. Large-scale drainage and small-scale irrigation in southern China also require large quantities Of the irrigation and drainage machinery; in agriculture field water consumption, the need to promote new technologies such as drip irrigation, but also energy-efficient irrigation equipment; China also need to properly develop irrigation and drainage equipment with a variety of energy. Water is an extremely important issue. By the end of this century, the annual water consumption in our country will be raised from the present 400 billion to 3 billion to 3 billion. According to the statistics, the exploitation and utilization of groundwater and surface water meters only make up for the available 12- 20%. However, the current irrigation and drainage power accounts for about 40% of the total power of agricultural machinery. Therefore, with the increase of water consumption in the national economy, developing various types of high-quality and efficient irrigation and drainage machinery will play a decisive role in the development of the country.