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我们宁夏回族自治区农林局水产试验场、宁夏计量研究所和电子仪器厂在毛主席革命路线指引下,于一九七五年试制了 Nx-1型溶氧测定仪样机。一九七六年宁夏电子仪器厂和区水产试验场为了普及大寨县,支援城郊养鱼生产,认真提高仪器的技术性能,又试制成了三台新的样机,经区水产试验场化验室和永宁县鱼业站试用考核,性能稳定。现将 Nx-1型溶氧测定仪简介如下:
In Ningxia Hui Autonomous Region Agriculture and Forestry Bureau aquatic test site, Ningxia Institute of Metrology and electronic equipment factory under the guidance of Chairman Mao’s revolutionary line, in 1975 trial production of Nx-1 dissolved oxygen analyzer prototype. In 1976, Ningxia Electronic Instrument Factory and District Aquatic Experiment Station were used to popularize Dazhai County, support the suburban fish production and seriously improve the technical performance of the instrument. Three new prototypes were trial-produced. Yongning County and fishing station trial assessment, stable performance. Now Nx-1-type dissolved oxygen analyzer profile is as follows: