TYJJ—1型静电显影记录仪是煤炭部渭南煤矿专用设备厂在文化大革命中,贯彻执行毛主席“独立自主、自力更生”的方针,自行设计试制成功的新产品。我队于一九七三年分配到一台仪器,在上级领导和队党委的关怀与重视下,经过部分改进和室内调试,投入了现场工作。三年来,不断坚持使用,克服困难,细心维护,使它日臻完善。 TYJJ-1 electrostatic development recorder is the coal Weinan coal mine special equipment factory in the Cultural Revolution, the implementation of Chairman Mao’s “independent, self-reliance” approach, to design a successful trial of new products. Our team was assigned to a piece of equipment in 1973. Under the care and attention of the superior leaders and the party committees under the leadership of the party, it has been put into field work after some improvements and indoor commissioning. In the past three years, we have persistently used it, overcame the difficulties and carefully maintained it so that it will be perfected.