青海省黄南藏族自治州机械厂、泽库县农牧机械厂、黄南藏族自治州畜牧兽医科学研究所等单位的工人和技术人员,在各级党委的领导下,从战备观点出发,因地制宜,试制成功一种脚踏式双气筒空气压缩机。经反复试验和在生产上大面积应用,气雾免疫效果良好,特别适宜在牲畜多、草原辽阔、地形复杂、道路 Qinghai Province Huangnan Tibetan Autonomous Prefecture Machinery Factory, Zeku County, animal husbandry Machinery Factory, Animal Husbandry and Veterinary Science Institute of Huangnan Tibetan Autonomous Prefecture and other units of workers and technical staff, at all levels under the leadership of party committees, from the readiness point of view, according to local conditions, trial A successful foot-type double-cylinder air compressor. After repeated tests and large-scale production in the application of aerosol immune effect is good, especially suitable for livestock, vast grassland, complex terrain, the road