JQH—1型混凝土气孔分析显微镜于82年10月在南通市进行鉴定。全国十几个省、市建工和建材行业的科研、教学和施工单位的代表在鉴定会上审查了该仪器的技术资料,对仪器的结构、性能和操作方法进行了分析。经过全国七个单位半年多的试用和与会代表在会议上的实际操作,一致认为该仪器能够满足测试要求,并具 The JQH-1 concrete stomata analysis microscope was identified in Nantong City in October of the year 82. Representatives of scientific research, teaching, and construction units in more than a dozen provinces, cities, and building materials industries reviewed the instrument’s technical data at the appraisal meeting, and analyzed the instrument’s structure, performance, and operation methods. After more than half a year’s trials in seven units in the country and the actual operation of the delegates at the meeting, they agreed that the instrument can meet the testing requirements and