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JWT型钻孔无线电波透视仪(鉴定时用名为KWT型孔中无线电波透视仪)于一九七四年经部在焦作鉴定通过,确定进行小批生产,扩大试验。根据这一精神,由研制单位-煤炭部地质勘探研究所对仪器作了改进,并在河南、陕西、广东、广西等省的矿区进行了大量试验工作。一九七六-一九七七年由柳州市无线电元件一厂小批生产十一台,并在广西不少矿区进行了试验,都取得了一定的地质效果。几年来,通过大量的试验工作,逐渐
JWT drilling radio wave radiograph (identification with the name of KWT hole radio wave radiograph) was approved by the Ministry in Jiaozuo in 1974, to determine the small batch production, to expand the test. According to this spirit, the instrument was improved by the research institute of the Ministry of Coal Geology and Exploration and a large number of experiments have been carried out in the mines in Henan, Shaanxi, Guangdong and Guangxi provinces. From 1976 to 1977, a batch of eleven units were produced in a small batch in Liuzhou Radio Components Factory and tested in a number of mining areas in Guangxi Province. Both of them achieved certain geological results. In recent years, through a large number of experimental work, gradually