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由兰州石油机械研究所、青海第一机床厂和辽河油田高升采油厂共同研制的CYJ14-5-74(H)Q前置式气动平衡抽油机,经过一年多时间的矿场试验,于1988年1月26日至28日在沈阳召开了产品鉴定会。参加会议的有石油部、油田、高等院校、制造厂和科研院所共16个单位30多名专家代表。会议听取了兰石所的设计总结,青海第一机床厂的试制总结和高升采油厂的试验报告,与会专家一致认
The CYJ14-5-74 (H) Q front-mounted pneumatic balance pumping unit jointly developed by Lanzhou Petroleum Machinery Research Institute, Qinghai No.1 Machine Tool Plant and Liaohe Oilfield Ascension Oil Extraction Plant, after more than one year’s field test, From January 26 to January 28, 1988, a product appraisal meeting was held in Shenyang. More than 30 experts and representatives from 16 units including the Ministry of Petroleum, oil fields, institutions of higher learning, manufacturing plants and research institutes participated in the conference. The meeting listened to the design summary of Lan Shi, trial production of the first Qinghai Machine Tool Plant and the test report of the high oil production plant, the experts agreed